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单词 diaphragm
释义

diaphragmn.

Brit. /ˈdʌɪəfram/, U.S. /ˈdaɪəˌfræm/
Forms: Also 1600s– agme.
Etymology: < Latin diaphragma, < Greek διάϕραγμα, the midriff, primarily ‘partition-wall, barrier’, < δια- through, apart + ϕράγμα fence, < ϕράσσειν to fence in, hedge round. Long used in Latin form. Compare French diaphragme, in 13–14th cent. diaffragme (Hatzfeld & Darmesteter).
I. A part of the body.
1. Anatomy. The septum or partition, partly muscular, partly tendinous, which in mammals divides the thoracic from the abdominal cavity; the midriff.Its action is important in respiration, and it is also concerned in laughter, sneezing, and hiccough; hence to move the diaphragm, to excite laughter.
ΘΚΠ
the world > life > the body > internal organs > diaphragm > [noun]
midredeOE
midriffeOE
diaphragm1398
midgena1400
middleriff1598
traverse1601
riff1631
phren1706
1398 J. Trevisa tr. Bartholomew de Glanville De Proprietatibus Rerum (1495) vii. lv. 269 Diafragma is a skynne that departyth and is sette bitwene the bowels and the spirytuall membres.
c1400 Lanfranc's Cirurg. 161 Þis diafragma departiþ þe spirituals from þe guttis.
1594 T. Bowes tr. P. de la Primaudaye French Acad. II. 220 There is a partition called Diaphragma by the Græcians, which separateth the instruments of the vital partes, from the nourishing parts.
1626 F. Bacon Sylua Syluarum §697 It is true that they [Insecta] have (some of them) Diaphragm and an Intestine.
1629 J. Gaule Distractions 293 It still moues my Diaphragme, what once mou'd the Spleene of Cyrus.
1686 R. Boyle Free Enq. Notion Nature 326 Divers of the Solid Parts, as the Heart and Lungs, the Diaphragma.
1767 B. Gooch Pract. Treat. Wounds I. 369 The Diaphragm is a muscle of the greatest importance in respiration.
1872 C. Darwin Expression Emotions Man & Animals viii. 202 The sound of laughter is produced by a deep inspiration, followed by short, interrupted spasmodic contractions of the chest, and especially of the diaphragm.
1875 C. C. Blake Zoology 1 Inspiration is performed chiefly by the aid of the diaphragm.
II. Transferred uses.
2.
a. generally. Applied to anything natural or artificial which in its nature or function resembles the diaphragm of the animal body, or similarly serves as a partition.
ΘΚΠ
the world > space > relative position > condition or fact of being interjacent > [noun] > that which is interjacent > and separates two things > a partition
interclose1344
enterclosea1430
partition1545
distinction1578
membrane1631
septuma1638
diaphragm1660
midriff1660
cloison1693
separationc1720
dispartation1779
separator1881
1660 R. Boyle New Exper. Physico-mechanicall xxiv. 192 Certain Diaphragmes, consisting of the coats of the bubbles.
1862 M. Hopkins Hawaii 27 That this fiery bottom was only a roof or diaphragm, of no great thickness, the upper and solidified portion of the incandescent matter of the volcano.
1891 Pall Mall Gaz. 21 Aug. 6/2 A real advance in cartography was made when Dicæarch of Messena (390–290 B.C.) introduced the parallel of Rhodes. This ‘diaphragm’ was intersected at right angles by parallel lines representing meridians.
b. A thin rubber or plastic contraceptive cap with a flexible metal rim which fits over the cervix.
ΘΚΠ
the world > physical sensation > sexual relations > contraception or birth control > [noun] > a contraceptive > placed in the vagina or uterus
pessary1886
cap1916
Dutch cap1922
coil1931
diaphragm1933
Margulies spiral1962
Lippes loop1964
loop1965
1933 G. M. Cox Clinical Contraception ix. 120 The patient may be fitted with a diaphragm or vault pessary if she so desires.
1948 N. Mailer Naked & Dead (1949) iii. ii. 490 They wanted a baby, but now he cannot afford another one, and he is wondering if her diaphragm has been set properly.
1968 M. Richler Cocksure xvi. 96 He found himself buying tubes of vaginal jelly, diaphragms in all available sizes, prophylactics.
1970 Contraceptives (Suppl. to Which? ) 47 There are basically three types of cap that can be used by women—diaphragm, cervical cap and vault cap. All fit in the vagina, over the cervix.
3.
a. Zoology. A septum or partition separating the successive chambers of certain shells. Also applied to the operculum of a gastropod.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > mollusc or shell-fish > parts of mollusc
ungulaa1382
mantlea1475
trunk1661
diaphragm1665
lid1681
operculum1681
ear1688
beard1697
corslet1753
scar1793
opercle1808
pleura1826
pallium1834
byssus1835
cephalic ganglia1835–6
opercule1836
lingual ribbon1839
tube1839
cloak1842
test1842
collar1847
testa1847
rachis1851
uncinus1851
land-shell1853
mantle cavity1853
mesopodium1853
propodium1853
radula1853
malacology1854
gill comb1861
pallial cavity1862
tongue-tootha1877
mesopode1877
odontophore1877
pallial chamber1877
shell-gland1877
rasp1879
protopodium1880
ctenidium1883
osphradium1883
shell-sac1883
tooth-ribbon1883
megalaesthete1885
rachidian1900
scungille1953
tentacle-sheath-
1665 R. Hooke Micrographia 111 These shells which are thus spirallied and separated with Diaphragmes, were some kind of Nautili.
a1728 J. Woodward Attempt Nat. Hist. Fossils Eng. (1729) ii. 107 A Fasciculus of Bodies,..parted into numerous Cells by means of Diaphragms.
1858 A. Geikie Story of Boulder v. 68 The same thin diaphragms..marked the successive stages of the animal's growth.
1880 A. R. Wallace Island Life v. 76 Some..which close the mouth of the shell with a diaphragm of secreted mucus.
b. Botany. A septum or partition consisting of one or more layers of cells, occurring in the tissues of plants; a transverse partition in a stem or leaf.
ΚΠ
1665 R. Hooke Micrographia 115 Not to consist of abundance of long pores separated with Diaphragms, as Cork does.
1874 M. C. Cooke Fungi 35 The mouth being for some time closed by a veil, or diaphragm, which ultimately disappears.
1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 217 The air~passages in the internodes, petioles, and leaves of most Monocotyledons..the internodes and petioles or conical leaves of the Marsiliaceæ, the leaves of the Isoeteæ, etc., are partitioned by diaphragms.
1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 219 The one-layered diaphragms..in the leaf of Pistia.
4. Mechanics. A thin lamina or plate serving as a partition, or for some specific purpose; sometimes transferred to other appliances by which such purpose is effected: e.g.
a. A thin plate or disk used as a partition, especially in a tube or pipe; in optical instruments, an opaque plate or disk pierced with a circular hole to cut off marginal beams of light; spec. in Photography.
ΘΚΠ
the world > physical sensation > sight and vision > optical instruments > [noun] > instrument for looking through > parts of
sight-hole1559
aperture1665
diaphragm1665
reticule1728
reticle1731
wire1737
web1746
screena1764
eye cap1822
spider-line1829
cobweb1837
slit1863
1665 R. Hooke Micrographia Pref. sig. F The Ray..passes also perpendicularly through the Glass Diaphragme.
1669 R. Boyle Contin. New Exper. Physico-mech. (1682) ii. 19 A Diaphragma or Midriff of Tin whose edges are so polished on both sides that [etc.].
1682 Weekly Memorials for Ingenious (Faithorne & Kersey) 2 Oct. 250 Two Tin-pipes, with a Diaphragm being elevated and depressed by the help of two wreaths.
1773 Philos. Trans. (Royal Soc.) 63 203 Several diaphragms of paste~board..to be applied to the object-glass externally.
1800 Philos. Trans. (Royal Soc.) 90 557 A diaphragm, whose aperture was ½ an inch, was then put over the object-glass of the transit telescope.
1850 J. Chubb On Constr. Locks & Keys 35 In a line with the plane of the plate, or diaphragm of the lock.
1872 T. H. Huxley Lessons Elem. Physiol. (ed. 6) ix. 229 To have what is termed a diaphragm (that is an opaque plate with a hole in the centre) in the path of the rays.
1878 W. de W. Abney Treat. Photogr. xxix. 205 In the doublet lens the position of the diaphragm is important.
1892 Photogr. Ann. II. 38 The diaphragm case.
1892 Photogr. Ann. II. 39 A flare spot is..really the reflection of the diaphragm aperture.
1918 Photo-Miniature Mar. Diaphragm shutter, one working approximately in the position of the diaphragm in the doublet lens. Constructed of leaves or blades which open and then close the aperture in the exposure shutter.
in extended use.1860 J. Tyndall Glaciers of Alps i. xxvii. 207 The clouds..had, during the night, thrown vast diaphragms across the sky.1869 A. J. Ellis On Early Eng. Pronunc. I. i. iii. 161 The lips which form a variable diaphragm.1878 M. Foster Text Bk. Physiol. (ed. 2) iii. ii. 397 The iris serving as a diaphragm.
b. The porous cup of a voltaic cell.
ΚΠ
1866 R. M. Ferguson Electricity 136 Taking 1d for diaphragm or porous cell.
1885 H. W. Watson & S. H. Burbury Math. Theory Electr. & Magn. I. 234 The hydrogen H2 does not as in that case remain free. It passes through the diaphragm and displaces an equivalent of copper in the sulphate of copper.
c. A membrane stretched in or on a frame; a vibrating membrane or disk in an acoustic instrument; the vibrating disk of a telephone.
ΘΚΠ
the world > physical sensation > hearing and noise > audibility > sound magnification or reproduction > [noun] > vibrating membrane in instrument
diaphragm1853
the world > space > shape > condition of being broad in relation to thickness > [noun] > thin plate or layer > extremely thin
film1635
diaphragm1853
1853 E. K. Kane U.S. Grinnell Exped. l. 483 The kayack itself is a mere diaphragm of skin, stretched on a wooden frame.
1866 Reader 15 Sept. 796 An ear-trumpet, across the mouth of which was stretched a diaphragm of Indian rubber.
1879 G. B. Prescott Speaking Telephone (new ed.) p. iii In 1861 Reiss discovered that a vibrating diaphragm could be actuated by the human voice.
1879 Cassell's Techn. Educator (new ed.) IV. 155/1 When the sound vibrations impinge upon the mica diaphragm the needle-point will indent the tinfoil.
d. The assemblage of lines of reference in the focus of a telescope, whether ruled upon glass, or formed of spider webs stretched in a frame.
ΚΠ
1829 W. Pearson Pract. Astron. II. 133 The first reticulated diaphragm that was used in making astronomical observations was by the Parisian astronomer Cassini.
1844 W. H. Smyth Cycle Celestial Objects (1860) 215 Reticulated diaphragms..useful in mapping stars, and differentiating them.
1879 S. Newcomb & E. S. Holden Astron. for Schools & Coll. 76 Fine spider lines tightly stretched across a metal plate or diaphragm.

Compounds

attributive, as diaphragm current, diaphragm eyepiece, diaphragm nerve, diaphragm plate, etc.
ΚΠ
1667 R. Lower in Philos. Trans. (Royal Soc.) 2 546 A dog, whose Diaphragme-nerves are cut.
1859 F. A. Griffiths Artillerist's Man. (1862) 89 One inch in length for diaphragm shells.
1883 New Sydenham Soc. Lexicon Diaphragm currents, electric currents caused by forcing a liquid through a porous diaphragm.

Derivatives

diaphragˈmalgia n.
ΚΠ
1842 R. Dunglison Med. Lexicon (ed. 3) Diaphragmalgia, pain in the diaphragm.
1849 C. A. Harris Dict. Dental Sci. & Med. Terminol. 213/1 Diaphragmalgia, pain in the diaphragm.
diaphragmaˈtalgia n. [ < Greek ἄλγος, -αλγια pain] pain in the diaphragm.
diaphragmaˈtitis n. (also diaphragma'mitis) inflammation of the diaphragm.
ΚΠ
1836–9 Todd's Cycl. Anat. & Physiol. II. 6/2 The diaphragm is subject to attacks of inflammation..termed diaphragmitis.
1842 R. Dunglison Med. Lexicon (ed. 3) Diaphragmitis, inflammation of the diaphragm.
diaˈphragmatocele n. hernia of the diaphragm ( New Sydenham Soc. Lexicon 1883).
This entry has not yet been fully updated (first published 1895; most recently modified version published online June 2022).

diaphragmv.

Etymology: < diaphragm n.Previous versions of the OED give the stress as: ˈdiaphragm.
transitive. To fit or act upon with a diaphragm. to diaphragm down, in Optics: to reduce the field of vision of (a lens, etc.) by means of an opaque diaphragm with a central aperture (see diaphragm n. 4a).
ΘΚΠ
the world > physical sensation > sight and vision > optical instruments > lens > [verb (transitive)] > reduce field
to diaphragm down1879
1879 H. Grubb in Proc. Royal Dubl. Soc. 181 Even after shutting one eye and diaphragming the other down.
1894 Brit. Jrnl. Photogr. 41 1 If both [lenses] are diaphragmed down to the same aperture.
This entry has not yet been fully updated (first published 1895; most recently modified version published online June 2019).
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n.1398v.1879
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