diplo-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.

Forms: before a vowel dipl-.

Origin: Of multiple origins. Partly a borrowing from Latin. Partly a borrowing from Greek. Etymons: Latin diplo-, Greek διπλο-.

Etymology: < (i) scientific Latin diplo- and its etymon (ii) Hellenistic Greek διπλο-, combining form (in e.g. διπλοείματος with double cloak) of ancient Greek διπλοῦς (uncontracted διπλόος ) twofold, double < δι- di- comb. form + a second element also seen in ἁπλοῦς (uncontracted ἁπλόος ) single, simple (see haplo- comb. form and note at that entry).Compare French diplo-, German diplo-.

Combining form of Greek διπλόος, διπλοῦς twofold, double, used in many scientific terms; e.g. Botany, of mosses, having a double peristome, or fringe round the mouth of the capsule. Entomology, belonging to the family Diploptera (the true wasps) in Latreille's classification of insects, which have the fore wings folded when at rest.

diplaˈcusis n.

Brit.

/ˌdɪpləˈkuːsɪs/

U.S.

/ˌdɪpləˈkusəs/

Pathology double hearing, the hearing of two notes when only one is produced, due to the hearing of a different tone in each ear, or to the arousing of two tonal sensations in the same ear. [ < scientific Latin diplacusis (1830 or earlier) < dipl- diplo- comb. form + ancient Greek ἄκουσις hearing (see etymological note at acoumeter n.).]

ΚΠ

1890 J. S. Billings National Med. Dict. I. 400/2 Diplakousis or Diplacusis.

1895 E. B. Titchener tr. O. Külpe Outl. Psychol. 299 The abnormality (diplacusis) may be restricted to a single ear.

1970 J. V. Tobias Found. Mod. Auditory Theory I. x. 391 One possible explanation for diplacusis is distortion.

ˌdiplobaˈcillus n.

Brit.

/ˌdɪplə(ʊ)bəˈsɪləs/

U.S.

/ˌdɪploʊbəˈsɪləs/

(see quot. 1957¹). [ < scientific Latin diplobacillus (1887 or earlier) < diplo- diplo- comb. form + bacillus bacillus n.]

ΚΠ

1901 Jrnl. Exper. Med. 5 213 The occurrence of acid-resisting diplococci or diplo-bacilli.

1908 Practitioner Feb. 203 The diplobacillus of Morax-Axenfeld.

1957 M. B. Jacobs et al. Dict. Microbiol. 78/2 Diplobacilli, bacillus-type bacteria occurring in pairs, as, for example, Moraxella lacunata.

1957 Bergey's Man. Determinative Bacteriol. (ed. 7) 419 Genus VII. Moraxella... Small rod-shaped cells which occur as diplobacilli.

diplobacˈteria n.

Brit.

/ˌdɪplə(ʊ)bakˈtɪərɪə/

U.S.

/ˌdɪploʊbækˈtɪriə/

(plural) bacteria consisting of two cells, or adhering in pairs. [ < scientific Latin diplobacteria (Billroth, 1874) < diplo- diplo- comb. form + bacteria (see bacterium n.).]

ΚΠ

1888 F. P. Billings in Amer. Naturalist 22 123 We may find two apparently mature organisms enclosed in a common capsule..These diplo-bacteria may assume a curved or sausage shape.

Thesaurus »

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diploˈblastic adj.

Brit.

/ˌdɪpləˈblastɪk/

U.S.

/ˌdɪpləˈblæstɪk/

Biology having two germinal layers, the hypoblast and epiblast.

diploˈcardiac adj.

Brit.

/ˌdɪplə(ʊ)ˈkɑːdɪak/

U.S.

/ˌdɪploʊˈkɑrdiˌæk/

Zoology having the heart double, i.e. with the right and left halves completely separate, as birds and mammals.

ΚΠ

1867 F. J. S. Gorgas Harris's Dict. Med. Terminol., Dental Surg., & Collateral Sci. (ed. 3) 217/1 Diplocardiac, having a double heart.

diploˈcephaly n.

Brit.

/ˌdɪplə(ʊ)ˈsɛfəli/

/ˌdɪplə(ʊ)ˈsɛfl̩i/

/ˌdɪplə(ʊ)ˈkɛfəli/

/ˌdɪplə(ʊ)ˈkɛfl̩i/

U.S.

/ˌdɪploʊˈsɛfəli/

severe malformation of the fetus consisting in having two heads. [ < scientific Latin diplocephalia (1845 or earlier) < diplo- diplo- comb. form + -cephalia -cephaly comb. form.]

ΚΠ

1847 J. Craig New Universal Dict. Diplocephalia.

1883 New Sydenham Soc. Lexicon Diplocephaly, in Teratology, the condition of a fœtus having two heads on one body.

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diploˈconical adj.

Brit.

/ˌdɪplə(ʊ)ˈkɒnɪkl/

U.S.

/ˌdɪploʊˈkɑnək(ə)l/

/ˌdɪpləˈkɑnək(ə)l/

of the form of a double cone.

ˈdiplodal adj.

Brit.

/ˈdɪplədl/

U.S.

/ˈdɪpləd(ə)l/

Zoology of sponges, having both canals, prosodal (of entrance) and aphodal (of exit) well developed. [ < diplo- comb. form + ancient Greek ὁδός way (see -ode comb. form²) + -al suffix¹.]

ΚΠ

1887 W. J. Sollas in Encycl. Brit. XXII. 415/1 This, which from the marked presence of both prosodal and aphodal canals may be termed the diplodal type of the Rhagon canal system, occurs but rarely.

ˈdiplodoxy n.

Brit.

/ˈdɪplədɒksi/

U.S.

/ˈdɪpləˌdɑksi/

(see quot. 1851).Apparently an isolated use.

ΚΠ

1851 Fraser's Mag. 43 289 An orthodoxy with two tails—or a diplo~doxy—to coin a word—which affirms the co-existence of two separate beliefs, while it expresses no dogma as to the truth of either.

diploˈgangliate adj.

Brit.

/ˌdɪplə(ʊ)ˈɡaŋɡlɪət/

/ˌdɪplə(ʊ)ˈɡaŋɡlɪeɪt/

U.S.

/ˌdɪploʊˈɡæŋɡliᵻt/

/ˌdɪploʊˈɡæŋɡliˌeɪt/

/ˌdɪpləˈɡæŋɡliᵻt/

/ˌdɪpləˈɡæŋɡliˌeɪt/

having ganglia arranged in pairs; said of a division of animals (Diplogangliata) nearly equivalent to Cuvier's Articulata. [After scientific Latin Diplogangliata (1838 or earlier).]

ΚΠ

1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) viii. 257 The nervous system is composed of a chain of ganglia disposed in pairs, and united by nervous cords: hence the term diplo~gangliata.

diploˈgenesis n.

Brit.

/ˌdɪplə(ʊ)ˈdʒɛnᵻsɪs/

U.S.

/ˌdɪploʊˈdʒɛnəsəs/

/ˌdɪpləˈdʒɛnəsəs/

(a) the production of double organs or parts instead of single ones; the formation of a double monster; (b) the supposed change of germ plasm produced by changes due to environment, bringing about inheritance of acquired characteristics. [ < scientific Latin diplogenesis formation of conjoined twins (1829 or earlier) < diplo- diplo- comb. form + -genesis -genesis comb. form.]

ΚΠ

1835–6 Todd's Cycl. Anat. & Physiol. I. 509/1 That form of monstrosity..called Diplogenesis.

1878 R. T. H. Bartley tr. P. Topinard Anthropol. v. 162 Diplogenesis, in which the whole body is more or less double.

1896 Nat. Sci. Nov. 288 Cope's theory of Diplogenesis.

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diplogeˈnetic adj.

Brit.

/ˌdɪplə(ʊ)dʒᵻˈnɛtɪk/

U.S.

/ˌdɪploʊdʒəˈnɛdɪk/

‘producing two substances; partaking of the nature of two bodies’ (Craig 1847).

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diploˈgenic adj.

Brit.

/ˌdɪpləˈdʒɛnɪk/

U.S.

/ˌdɪpləˈdʒɛnɪk/

= diplogenetic adj. [After German diplogener (1829 in Haidinger, or earlier).]

ˈdiplograph n.

Brit.

/ˈdɪpləɡrɑːf/

/ˈdɪpləɡraf/

U.S.

/ˈdɪpləˌɡræf/

(see quot. 1876).

ΚΠ

1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. No. 2052. Diplograph. Writing machine for the Blind, by which writing in relief and ordinary writing are performed at the same time.

diploˈgraphic n.

Brit.

/ˌdɪpləˈɡrafɪk/

U.S.

/ˌdɪpləˈɡræfɪk/

ΚΠ

1823 J. Elmes Mem. Life C. Wren 23 In 1647..he had a patent granted him for seventeen years, for a diplographic instrument for writing with two pens.

diploˈgraphical adj.

Brit.

/ˌdɪpləˈɡrafɪkl/

U.S.

/ˌdɪpləˈɡræfɪk(ə)l/

of or pertaining to writing double.

ΚΠ

1750 C. Wren Parentalia 212 He [Wren] invented the art of double writing..by an instrument called the Diplographical Instrument.

1758 Grand Mag. of Mag. Nov. In 1647, about three years before Mr. Wren publicly produced his diplographical instruments.

diˈplography n.

Brit.

/dᵻˈplɒɡrəfi/

U.S.

/dəˈplɑɡrəfi/

ΚΠ

1824 Mechanics' Mag. No. 60. 59 Diplography.

diploˈhaplont n.

Brit.

/ˌdɪplə(ʊ)ˈhaplɒnt/

U.S.

/ˌdɪploʊˈhæˌplɑnt/

Biology an organism whose life-cycle embraces a diploid and a haploid phase.

ΚΠ

1921 Bot. Abstr. VI. 251 (heading) Genetical phenomena and taxonomy in haplonts and diplohaplonts in the vegetable kingdom.

1938 Bot. Rev. 4 136 Diplohaplonts with unlike alternating generations are common among the Phaeophyceae.

1965 P. Bell & D. Coombe tr. Strasburger's Textbk. Bot. (new ed.) i. i. 36 In many of the more highly developed algae..the diploid zygote grows first into a multicellular diploid plant, the sporophyte. After the development of numerous diploid spore-mother cells meiosis takes place freely. Thus from the original nuclear fusion..a multitude of haploid cells (gonospores) are produced. These organisms are termed diplohaplonts.

diplohaˈplontic adj.

Brit.

/ˌdɪpləʊhaˈplɒntɪk/

U.S.

/ˌdɪploʊhæˈplɑn(t)ɪk/

ΚΠ

1938 Bot. Rev. 4 137 A lifecycle identical with that of the diplohaplontic Phaeophyceae with dissimilar generations has been described for Stigeoclonium.

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diploˈneural adj.

Brit.

/ˌdɪplə(ʊ)ˈnjʊərəl/

/ˌdɪplə(ʊ)ˈnjʊərl̩/

U.S.

/ˌdɪploʊˈn(j)ʊr(ə)l/

Anatomy supplied by two nerves of separate origin, as a muscle.

diploneuˈrose adj.

Brit.

/ˌdɪplə(ʊ)njᵿˈrəʊs/

/ˌdɪplə(ʊ)njᵿˈrəʊz/

U.S.

/ˌdɪploʊn(j)əˈroʊs/

/ˌdɪploʊn(j)əˈroʊz/

Zoology belonging to the Diploneura (Grant's term for the Articulata, as having a double nerve-cord running along the body). [After scientific Latin Diploneura (1833 in Grant, or earlier).]

ΚΠ

1836–9 Todd's Cycl. Anat. & Physiol. II. 412/2 Belonging to the diploneurose..divisions of the animal kingdom.

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diploˈneurous adj.

Brit.

/ˌdɪplə(ʊ)ˈnjʊərəs/

U.S.

/ˌdɪploʊˈn(j)ʊrəs/

‘having two nervous systems; also, belonging to the Diploneura’ ( New Sydenham Soc. Lexicon).

diplopeˈristomous adj.

Brit.

/ˌdɪplə(ʊ)pᵻˈrɪstəməs/

U.S.

/ˌdɪploʊpəˈrɪstəməs/

[ < scientific Latin diploperistomus (1824 or earlier) < diplo- diplo- comb. form + peristomus peristome n.; compare French diplopéristome (1804 or earlier).]

ΚΠ

1861 R. Bentley Man. Bot. i. v. 378 With two rows, they are diploperistomous.

ˈdiplophase n.

Brit.

/ˈdɪpləfeɪz/

U.S.

/ˈdɪpləˌfeɪz/

Biology the phase in the lifecycle of an organism when the nuclei are diploid. [ < diplo- comb. form + phase n.², after French diplophase (P. Vuillemin Les bases actuelles de la systématique en mycologie (1907) 85).]

ΚΠ

1925 E. B. Wilson Cell (ed. 3) 1130 Diplophase, that phase of the life-history, particularly in the antithetic alternation of generations, in which the nuclei are haploid, as in the sporophyte.

1965 J. Wilkinson tr. M. Langeron Outl. Mycol. (ed. 2) ix. 374 Meiosis intervenes between the diplophase and the haplophase, fertilization between the haplophase and the diplophase.

diploˈplacula n.

Brit.

/ˌdɪplə(ʊ)ˈplakjᵿlə/

U.S.

/ˌdɪploʊˈplækjələ/

/ˌdɪpləˈplækjələ/

Embryology a placula n. composed of two layers resulting from transverse fission.

ΚΠ

1884 A. Hyatt in Proc. Boston Soc. Nat. Hist. XXIII. 89 In this way the primitive differentiation of the placula into two layers is established in what we have designated the diploplacula.

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diploˈplacular adj.

Brit.

/ˌdɪplə(ʊ)ˈplakjᵿlə/

U.S.

/ˌdɪploʊˈplækjələr/

/ˌdɪpləˈplækjələr/

(see diploplacula n.)

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diploˈplaculate adj.

Brit.

/ˌdɪplə(ʊ)ˈplakjᵿleɪt/

/ˌdɪplə(ʊ)ˈplakjᵿlət/

U.S.

/ˌdɪploʊˈplækjəˌleɪt/

/ˌdɪploʊˈplækjələt/

/ˌdɪpləˈplækjəˌleɪt/

/ˌdɪpləˈplækjələt/

(see diploplacula n.)

ˈdiplopod adj. and n.

Brit.

/ˈdɪpləpɒd/

U.S.

/ˈdɪpləˌpɑd/

Zoology belonging to the order Diplopoda (= Cheilognatha) of Myriapods, having two pairs of limbs on each segment of the body; a member of this order. [After either scientific Latin Diplopoda or French diplopode (both 1847 or earlier).]

ΚΠ

1864 Webster's Amer. Dict. Eng. Lang. Diplopod (Zool.), one of a group of myriapods.

1883 Smithsonian Inst. Rep., Zool. (Cent. Dict.) One of the diplopod myriopods.

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diˈplopodous adj.

Brit.

/dᵻˈplɒpədəs/

U.S.

/dəˈplɑpədəs/

ˈdiplopore n.

Brit.

/ˈdɪpləpɔː/

U.S.

/ˈdɪpləˌpɔr/

Zoology any of the pores that occur in pairs on the surface of the theca of certain cystoids (order Diploporita); also, a thecal canal that ends in one of these pores.

ΚΠ

1899 Rep. Brit. Assoc. 1898 917 The simple or irregular haplopores become connected in pairs (diplopores).

1962 D. Nichols Echinoderms xi. 138 The diploporite Aristocystites..is flask-shaped, with a theca composed of many irregularly arranged plates pierced by haplopores and diplopores.

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diˈplopterous adj.

Brit.

/dᵻˈplɒptərəs/

U.S.

/dəˈplɑptərəs/

diplosˈphenal adj.

Brit.

/ˌdɪplə(ʊ)ˈsfiːnl/

U.S.

/ˌdɪploʊˈsfin(ə)l/

/ˌdɪpləˈsfin(ə)l/

Anatomy = hyposphenal adj. at hypo- prefix 2.

ΚΠ

1884 O. C. Marsh Amer. Jurassic Dinosaurs in Amer. Jrnl. Sc. CXXVII. 334 In Ceratosaurus..These vertebræ show the diplosphenal articulation seen in Megalosaurus.

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ˈdiplosphene adj.

Brit.

/ˈdɪpləsfiːn/

U.S.

/ˈdɪpləˌsfin/

Anatomy = hyposphene n. at hypo- prefix 2.

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diplosponˈdylic adj.

Brit.

/ˌdɪplə(ʊ)spɒnˈdɪlɪk/

U.S.

/ˌdɪploʊspɑnˈdɪlɪk/

/ˌdɪpləspɑnˈdɪlɪk/

Zoology said of a vertebral segment having two centra, or of a vertebral column having twice as many centra as arches, as in fishes and batrachians. [After German diplospondyl (1878 or earlier).]

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diploˈspondylism n.

Brit.

/ˌdɪplə(ʊ)ˈspɒndᵻlɪz(ə)m/

U.S.

/ˌdɪploʊˈspɑndlˌɪz(ə)m/

the condition of being diplospondylic.

diˈplostichous adj.

Brit.

/dᵻˈplɒstᵻkəs/

U.S.

/dəˈplɑstəkəs/

arranged in two rows, as the eyes of certain spiders.

ΚΠ

1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 525 The lateral eyes in Scorpionidæ and all the eyes of Limulus are monostichous; the central eyes of the former group and other Arachnids, so far as known, diplostichous.

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diploˈsyntheme n.

Brit.

/ˌdɪplə(ʊ)ˈsɪnθiːm/

U.S.

/ˌdɪploʊˈsɪnˌθim/

/ˌdɪpləˈsɪnˌθim/

= disyntheme n.

This entry has not yet been fully updated (first published 1896; most recently modified version published online June 2022).

单词	diplo-
释义	diplo-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Forms: before a vowel dipl-. Origin: Of multiple origins. Partly a borrowing from Latin. Partly a borrowing from Greek. Etymons: Latin diplo-, Greek διπλο-. Etymology: < (i) scientific Latin diplo- and its etymon (ii) Hellenistic Greek διπλο-, combining form (in e.g. διπλοείματος with double cloak) of ancient Greek διπλοῦς (uncontracted διπλόος ) twofold, double < δι- di- comb. form + a second element also seen in ἁπλοῦς (uncontracted ἁπλόος ) single, simple (see haplo- comb. form and note at that entry).Compare French diplo-, German diplo-. Combining form of Greek διπλόος, διπλοῦς twofold, double, used in many scientific terms; e.g. Botany, of mosses, having a double peristome, or fringe round the mouth of the capsule. Entomology, belonging to the family Diploptera (the true wasps) in Latreille's classification of insects, which have the fore wings folded when at rest. diplaˈcusis n. Brit. /ˌdɪpləˈkuːsɪs/ , U.S. /ˌdɪpləˈkusəs/ Pathology double hearing, the hearing of two notes when only one is produced, due to the hearing of a different tone in each ear, or to the arousing of two tonal sensations in the same ear. [ < scientific Latin diplacusis (1830 or earlier) < dipl- diplo- comb. form + ancient Greek ἄκουσις hearing (see etymological note at acoumeter n.).] ΚΠ 1890 J. S. Billings National Med. Dict. I. 400/2 Diplakousis or Diplacusis. 1895 E. B. Titchener tr. O. Külpe Outl. Psychol. 299 The abnormality (diplacusis) may be restricted to a single ear. 1970 J. V. Tobias Found. Mod. Auditory Theory I. x. 391 One possible explanation for diplacusis is distortion. ˌdiplobaˈcillus n. Brit. /ˌdɪplə(ʊ)bəˈsɪləs/ , U.S. /ˌdɪploʊbəˈsɪləs/ (see quot. 1957¹). [ < scientific Latin diplobacillus (1887 or earlier) < diplo- diplo- comb. form + bacillus bacillus n.] ΚΠ 1901 Jrnl. Exper. Med. 5 213 The occurrence of acid-resisting diplococci or diplo-bacilli. 1908 Practitioner Feb. 203 The diplobacillus of Morax-Axenfeld. 1957 M. B. Jacobs et al. Dict. Microbiol. 78/2 Diplobacilli, bacillus-type bacteria occurring in pairs, as, for example, Moraxella lacunata. 1957 Bergey's Man. Determinative Bacteriol. (ed. 7) 419 Genus VII. Moraxella... Small rod-shaped cells which occur as diplobacilli. diplobacˈteria n. Brit. /ˌdɪplə(ʊ)bakˈtɪərɪə/ , U.S. /ˌdɪploʊbækˈtɪriə/ (plural) bacteria consisting of two cells, or adhering in pairs. [ < scientific Latin diplobacteria (Billroth, 1874) < diplo- diplo- comb. form + bacteria (see bacterium n.).] ΚΠ 1888 F. P. Billings in Amer. Naturalist 22 123 We may find two apparently mature organisms enclosed in a common capsule..These diplo-bacteria may assume a curved or sausage shape. Thesaurus » Categories » diploˈblastic adj. Brit. /ˌdɪpləˈblastɪk/ , U.S. /ˌdɪpləˈblæstɪk/ Biology having two germinal layers, the hypoblast and epiblast. diploˈcardiac adj. Brit. /ˌdɪplə(ʊ)ˈkɑːdɪak/ , U.S. /ˌdɪploʊˈkɑrdiˌæk/ Zoology having the heart double, i.e. with the right and left halves completely separate, as birds and mammals. ΚΠ 1867 F. J. S. Gorgas Harris's Dict. Med. Terminol., Dental Surg., & Collateral Sci. (ed. 3) 217/1 Diplocardiac, having a double heart. diploˈcephaly n. Brit. /ˌdɪplə(ʊ)ˈsɛfəli/ , /ˌdɪplə(ʊ)ˈsɛfl̩i/ , /ˌdɪplə(ʊ)ˈkɛfəli/ , /ˌdɪplə(ʊ)ˈkɛfl̩i/ , U.S. /ˌdɪploʊˈsɛfəli/ severe malformation of the fetus consisting in having two heads. [ < scientific Latin diplocephalia (1845 or earlier) < diplo- diplo- comb. form + -cephalia -cephaly comb. form.] ΚΠ 1847 J. Craig New Universal Dict. Diplocephalia. 1883 New Sydenham Soc. Lexicon Diplocephaly, in Teratology, the condition of a fœtus having two heads on one body. Categories » diploˈconical adj. Brit. /ˌdɪplə(ʊ)ˈkɒnɪkl/ , U.S. /ˌdɪploʊˈkɑnək(ə)l/ , /ˌdɪpləˈkɑnək(ə)l/ of the form of a double cone. ˈdiplodal adj. Brit. /ˈdɪplədl/ , U.S. /ˈdɪpləd(ə)l/ Zoology of sponges, having both canals, prosodal (of entrance) and aphodal (of exit) well developed. [ < diplo- comb. form + ancient Greek ὁδός way (see -ode comb. form²) + -al suffix¹.] ΚΠ 1887 W. J. Sollas in Encycl. Brit. XXII. 415/1 This, which from the marked presence of both prosodal and aphodal canals may be termed the diplodal type of the Rhagon canal system, occurs but rarely. ˈdiplodoxy n. Brit. /ˈdɪplədɒksi/ , U.S. /ˈdɪpləˌdɑksi/ (see quot. 1851).Apparently an isolated use. ΚΠ 1851 Fraser's Mag. 43 289 An orthodoxy with two tails—or a diplo~doxy—to coin a word—which affirms the co-existence of two separate beliefs, while it expresses no dogma as to the truth of either. diploˈgangliate adj. Brit. /ˌdɪplə(ʊ)ˈɡaŋɡlɪət/ , /ˌdɪplə(ʊ)ˈɡaŋɡlɪeɪt/ , U.S. /ˌdɪploʊˈɡæŋɡliᵻt/ , /ˌdɪploʊˈɡæŋɡliˌeɪt/ , /ˌdɪpləˈɡæŋɡliᵻt/ , /ˌdɪpləˈɡæŋɡliˌeɪt/ having ganglia arranged in pairs; said of a division of animals (Diplogangliata) nearly equivalent to Cuvier's Articulata. [After scientific Latin Diplogangliata (1838 or earlier).] ΚΠ 1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) viii. 257 The nervous system is composed of a chain of ganglia disposed in pairs, and united by nervous cords: hence the term diplo~gangliata. diploˈgenesis n. Brit. /ˌdɪplə(ʊ)ˈdʒɛnᵻsɪs/ , U.S. /ˌdɪploʊˈdʒɛnəsəs/ , /ˌdɪpləˈdʒɛnəsəs/ (a) the production of double organs or parts instead of single ones; the formation of a double monster; (b) the supposed change of germ plasm produced by changes due to environment, bringing about inheritance of acquired characteristics. [ < scientific Latin diplogenesis formation of conjoined twins (1829 or earlier) < diplo- diplo- comb. form + -genesis -genesis comb. form.] ΚΠ 1835–6 Todd's Cycl. Anat. & Physiol. I. 509/1 That form of monstrosity..called Diplogenesis. 1878 R. T. H. Bartley tr. P. Topinard Anthropol. v. 162 Diplogenesis, in which the whole body is more or less double. 1896 Nat. Sci. Nov. 288 Cope's theory of Diplogenesis. Categories » diplogeˈnetic adj. Brit. /ˌdɪplə(ʊ)dʒᵻˈnɛtɪk/ , U.S. /ˌdɪploʊdʒəˈnɛdɪk/ ‘producing two substances; partaking of the nature of two bodies’ (Craig 1847). Categories » diploˈgenic adj. Brit. /ˌdɪpləˈdʒɛnɪk/ , U.S. /ˌdɪpləˈdʒɛnɪk/ = diplogenetic adj. [After German diplogener (1829 in Haidinger, or earlier).] ˈdiplograph n. Brit. /ˈdɪpləɡrɑːf/ , /ˈdɪpləɡraf/ , U.S. /ˈdɪpləˌɡræf/ (see quot. 1876). ΚΠ 1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. No. 2052. Diplograph. Writing machine for the Blind, by which writing in relief and ordinary writing are performed at the same time. diploˈgraphic n. Brit. /ˌdɪpləˈɡrafɪk/ , U.S. /ˌdɪpləˈɡræfɪk/ ΚΠ 1823 J. Elmes Mem. Life C. Wren 23 In 1647..he had a patent granted him for seventeen years, for a diplographic instrument for writing with two pens. diploˈgraphical adj. Brit. /ˌdɪpləˈɡrafɪkl/ , U.S. /ˌdɪpləˈɡræfɪk(ə)l/ of or pertaining to writing double. ΚΠ 1750 C. Wren Parentalia 212 He [Wren] invented the art of double writing..by an instrument called the Diplographical Instrument. 1758 Grand Mag. of Mag. Nov. In 1647, about three years before Mr. Wren publicly produced his diplographical instruments. diˈplography n. Brit. /dᵻˈplɒɡrəfi/ , U.S. /dəˈplɑɡrəfi/ ΚΠ 1824 Mechanics' Mag. No. 60. 59 Diplography. diploˈhaplont n. Brit. /ˌdɪplə(ʊ)ˈhaplɒnt/ , U.S. /ˌdɪploʊˈhæˌplɑnt/ Biology an organism whose life-cycle embraces a diploid and a haploid phase. ΚΠ 1921 Bot. Abstr. VI. 251 (heading) Genetical phenomena and taxonomy in haplonts and diplohaplonts in the vegetable kingdom. 1938 Bot. Rev. 4 136 Diplohaplonts with unlike alternating generations are common among the Phaeophyceae. 1965 P. Bell & D. Coombe tr. Strasburger's Textbk. Bot. (new ed.) i. i. 36 In many of the more highly developed algae..the diploid zygote grows first into a multicellular diploid plant, the sporophyte. After the development of numerous diploid spore-mother cells meiosis takes place freely. Thus from the original nuclear fusion..a multitude of haploid cells (gonospores) are produced. These organisms are termed diplohaplonts. diplohaˈplontic adj. Brit. /ˌdɪpləʊhaˈplɒntɪk/ , U.S. /ˌdɪploʊhæˈplɑn(t)ɪk/ ΚΠ 1938 Bot. Rev. 4 137 A lifecycle identical with that of the diplohaplontic Phaeophyceae with dissimilar generations has been described for Stigeoclonium. Categories » diploˈneural adj. Brit. /ˌdɪplə(ʊ)ˈnjʊərəl/ , /ˌdɪplə(ʊ)ˈnjʊərl̩/ , U.S. /ˌdɪploʊˈn(j)ʊr(ə)l/ Anatomy supplied by two nerves of separate origin, as a muscle. diploneuˈrose adj. Brit. /ˌdɪplə(ʊ)njᵿˈrəʊs/ , /ˌdɪplə(ʊ)njᵿˈrəʊz/ , U.S. /ˌdɪploʊn(j)əˈroʊs/ , /ˌdɪploʊn(j)əˈroʊz/ Zoology belonging to the Diploneura (Grant's term for the Articulata, as having a double nerve-cord running along the body). [After scientific Latin Diploneura (1833 in Grant, or earlier).] ΚΠ 1836–9 Todd's Cycl. Anat. & Physiol. II. 412/2 Belonging to the diploneurose..divisions of the animal kingdom. Categories » diploˈneurous adj. Brit. /ˌdɪplə(ʊ)ˈnjʊərəs/ , U.S. /ˌdɪploʊˈn(j)ʊrəs/ ‘having two nervous systems; also, belonging to the Diploneura’ ( New Sydenham Soc. Lexicon). diplopeˈristomous adj. Brit. /ˌdɪplə(ʊ)pᵻˈrɪstəməs/ , U.S. /ˌdɪploʊpəˈrɪstəməs/ [ < scientific Latin diploperistomus (1824 or earlier) < diplo- diplo- comb. form + peristomus peristome n.; compare French diplopéristome (1804 or earlier).] ΚΠ 1861 R. Bentley Man. Bot. i. v. 378 With two rows, they are diploperistomous. ˈdiplophase n. Brit. /ˈdɪpləfeɪz/ , U.S. /ˈdɪpləˌfeɪz/ Biology the phase in the lifecycle of an organism when the nuclei are diploid. [ < diplo- comb. form + phase n.², after French diplophase (P. Vuillemin Les bases actuelles de la systématique en mycologie (1907) 85).] ΚΠ 1925 E. B. Wilson Cell (ed. 3) 1130 Diplophase, that phase of the life-history, particularly in the antithetic alternation of generations, in which the nuclei are haploid, as in the sporophyte. 1965 J. Wilkinson tr. M. Langeron Outl. Mycol. (ed. 2) ix. 374 Meiosis intervenes between the diplophase and the haplophase, fertilization between the haplophase and the diplophase. diploˈplacula n. Brit. /ˌdɪplə(ʊ)ˈplakjᵿlə/ , U.S. /ˌdɪploʊˈplækjələ/ , /ˌdɪpləˈplækjələ/ Embryology a placula n. composed of two layers resulting from transverse fission. ΚΠ 1884 A. Hyatt in Proc. Boston Soc. Nat. Hist. XXIII. 89 In this way the primitive differentiation of the placula into two layers is established in what we have designated the diploplacula. Categories » diploˈplacular adj. Brit. /ˌdɪplə(ʊ)ˈplakjᵿlə/ , U.S. /ˌdɪploʊˈplækjələr/ , /ˌdɪpləˈplækjələr/ (see diploplacula n.) Categories » diploˈplaculate adj. Brit. /ˌdɪplə(ʊ)ˈplakjᵿleɪt/ , /ˌdɪplə(ʊ)ˈplakjᵿlət/ , U.S. /ˌdɪploʊˈplækjəˌleɪt/ , /ˌdɪploʊˈplækjələt/ , /ˌdɪpləˈplækjəˌleɪt/ , /ˌdɪpləˈplækjələt/ (see diploplacula n.) ˈdiplopod adj. and n. Brit. /ˈdɪpləpɒd/ , U.S. /ˈdɪpləˌpɑd/ Zoology belonging to the order Diplopoda (= Cheilognatha) of Myriapods, having two pairs of limbs on each segment of the body; a member of this order. [After either scientific Latin Diplopoda or French diplopode (both 1847 or earlier).] ΚΠ 1864 Webster's Amer. Dict. Eng. Lang. Diplopod (Zool.), one of a group of myriapods. 1883 Smithsonian Inst. Rep., Zool. (Cent. Dict.) One of the diplopod myriopods. Categories » diˈplopodous adj. Brit. /dᵻˈplɒpədəs/ , U.S. /dəˈplɑpədəs/ ˈdiplopore n. Brit. /ˈdɪpləpɔː/ , U.S. /ˈdɪpləˌpɔr/ Zoology any of the pores that occur in pairs on the surface of the theca of certain cystoids (order Diploporita); also, a thecal canal that ends in one of these pores. ΚΠ 1899 Rep. Brit. Assoc. 1898 917 The simple or irregular haplopores become connected in pairs (diplopores). 1962 D. Nichols Echinoderms xi. 138 The diploporite Aristocystites..is flask-shaped, with a theca composed of many irregularly arranged plates pierced by haplopores and diplopores. Categories » diˈplopterous adj. Brit. /dᵻˈplɒptərəs/ , U.S. /dəˈplɑptərəs/ diplosˈphenal adj. Brit. /ˌdɪplə(ʊ)ˈsfiːnl/ , U.S. /ˌdɪploʊˈsfin(ə)l/ , /ˌdɪpləˈsfin(ə)l/ Anatomy = hyposphenal adj. at hypo- prefix 2. ΚΠ 1884 O. C. Marsh Amer. Jurassic Dinosaurs in Amer. Jrnl. Sc. CXXVII. 334 In Ceratosaurus..These vertebræ show the diplosphenal articulation seen in Megalosaurus. Categories » ˈdiplosphene adj. Brit. /ˈdɪpləsfiːn/ , U.S. /ˈdɪpləˌsfin/ Anatomy = hyposphene n. at hypo- prefix 2. Categories » diplosponˈdylic adj. Brit. /ˌdɪplə(ʊ)spɒnˈdɪlɪk/ , U.S. /ˌdɪploʊspɑnˈdɪlɪk/ , /ˌdɪpləspɑnˈdɪlɪk/ Zoology said of a vertebral segment having two centra, or of a vertebral column having twice as many centra as arches, as in fishes and batrachians. [After German diplospondyl (1878 or earlier).] Categories » diploˈspondylism n. Brit. /ˌdɪplə(ʊ)ˈspɒndᵻlɪz(ə)m/ , U.S. /ˌdɪploʊˈspɑndlˌɪz(ə)m/ the condition of being diplospondylic. diˈplostichous adj. Brit. /dᵻˈplɒstᵻkəs/ , U.S. /dəˈplɑstəkəs/ arranged in two rows, as the eyes of certain spiders. ΚΠ 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 525 The lateral eyes in Scorpionidæ and all the eyes of Limulus are monostichous; the central eyes of the former group and other Arachnids, so far as known, diplostichous. Categories » diploˈsyntheme n. Brit. /ˌdɪplə(ʊ)ˈsɪnθiːm/ , U.S. /ˌdɪploʊˈsɪnˌθim/ , /ˌdɪpləˈsɪnˌθim/ = disyntheme n. This entry has not yet been fully updated (first published 1896; most recently modified version published online June 2022). < comb. form1750
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