multivalveadj.n.

Brit.

/ˈmʌltɪˌvalv/, U.S.

/ˈməltiˌvælv/; see also multi- comb. form.

Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: multi- comb. form, valve n.¹

Etymology: < multi- comb. form + valve n.¹, after post-classical Latin multivalvis (M. Lister Historiæ sive Synopsis Methodicæ Conchyliorum (1687) plate 430, also Linnaeus Systema Naturæ (new ed., 1756) 82; compare Linnaeus's division Multivalvia ( Systema Naturæ (ed. 10, 1758) I. 645)). Compare French multivalve (1752). Compare earlier bivalve adj., univalve adj.

A. adj.

†1. Zoology and Botany. Having more than two valves.

a. Of molluscs and crustaceans (e.g. chitons and barnacles). Cf. valve n.¹ 2. Obsolete.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [adjective] > of parts of molluscs > of shell or parts of shell

testaceous1668

trivalvous1681

articulate1685

tabulous1734

concamerated1747

costated1751

ribbed1752

multivalve1753

umbilical1755

multivalved1759

trichite1765

right-handed1776

ventricose1777

unequivalved1788

sinistral1803

white-lipped1813

white-mouthed1815

turriculated1822

umbonial1824

turreted1826

siphunculated1828

columellar1829

sinistrorsal1830

canaliferous1834

spirivalve1835

turrited1835

versant1839

mitriform1843

paucispiral1843

turriculate1843

siphuncled1847

ventricous1850

camerated1851

convolute1851

perforated1851

parietal1854

septiferous1854

planorbiform1856

planorboid1856

trivalved1856

turrite1856

siphunculate1875

turriform1875

umbonic1877

costate1881

interlocular1888

varicated1891

lirate1894

evolute1896

1753 Chambers's Cycl. Suppl. at Pollicipes They are multivalve flat shells, of a triangular figure, each being composed of several laminæ.

1774 O. Goldsmith Hist. Earth VII. 61 Multivalve Shell-fish may be considered as animals shut up in round boxes.

1828 J. Stark Elements Nat. Hist. II. 122 The shell of the Cirripeda is always multivalve.

1850 I. Williams Seven Days 252 Spiral, or orb'd, cornute, or annular, Bivalve, or multivalve;—what tongue shall tell Their forms testaceous.

1898 Science 26 Aug. 254/2 The barnacles and ostracodes, with their multivalve or bivalve carapaces.

b. Of parts of plants. Cf. valve n.¹ 4a. Obsolete.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > seed > seed-vessel or pericarp > [adjective] > having or between divisions or sections

bivalve1737

valved?1768

trivalvular1785

multivalve1793

univalvular1793

univalved1823

bivalvular1830

intervalvular1830

bivalved1852

1793 T. Martyn Lang. Bot. sig. M5 Multivalvis gluma, a multivalve or many-valved glume.

1813 J. M. Good et al. Pantologia Multivalve Glume,..having more than two valves.

1831 W. Macgillivray tr. A. Richard Elem. Bot. 274 A Pericarp is..Multivalve, when it divides into a greater number of valves or distinct segments.

c. Of parts of insects. Cf. valve n.¹ 3. Obsolete.

ΘΚΠ

the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [adjective] > of abdomen

multivalve1819

superimposited1826

1819 G. Samouelle Entomologist's Compend. 353 Rostrum..Multivalve, forming a tube by means of many valves uniting.

1826 W. Kirby & W. Spence Introd. Entomol. IV. 373 Tail of the female without a terebrant, or pungent multivalve ovipositor.

1852 Amer. Whig Rev. Aug. 159/2 The sight of the butterfly and the moth invariably leads them to flowers, to suck whose nectar their multivalve tubes are given them.

a. Of the heart: having many valves. In quot. figurative. rare.

ΚΠ

1869 Atlantic Monthly Feb. 141/1 His heart was multivalve; he could love a dozen at once in various modes and degrees.

b. Medicine. Affecting or relating to more than one valve of the heart; = multivalvular adj.

ΚΠ

1966 Amer. Jrnl. Cardiol. 17 133/1 During the past 2.5 yr., 75 patients (not including those with multivalve replacement) have undergone aortic ball-valve replacement.

1976 Jrnl. Thoracic & Cardiovascular Surg. 71 230 Variables associated with higher incidence of late deaths are large left atrial size, patient age at operation, and multivalve disease.

1988 Arch. Internal Med. 148 2461 Surgery was required for..two of four patients with multivalve involvement.

1997 Amer. Heart Jrnl. 133 64 Double-valve balloon valvotomy is feasible and safe..in selected patients with multivalve disease.

3. Electronics. Having many thermionic valves.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [adjective] > having many valves

multivalve1920

1920 Wireless World Jan. 574/2 More than one valve may be connected in cascade to form a multi-valve amplifier.

1957 Wireless World July 310 (heading) Multi-valve cathode follower circuits.

4. Mechanics.

a. Having several or many mechanical valves.

ΚΠ

1979 Hydraulics & Pneumatics June 53 (title) Multi-valve circuit controls hydraulic elevators.

1987 Vet. Rec. 121 250/1 The multivalve or ball claw was developed to prevent the detrimental effects on udder disease..during machine milking.

b. spec. Of an engine, esp. a car engine: having more than the usual two valves per cylinder (usually four).

ΚΠ

1986 Automotive Industries Oct. 29/1 A total of twelve cars on the US market are now equipped with four valves per cylinder... Leader of the pack is Toyota with about 200,000 multi-valve engines now installed.

1990 Independent on Sunday 18 Feb. 5/2 The stunning performance that only a turbo-charged, multi-valve engine can deliver.

1993 Wall St. Jrnl. 19 Feb. a9/3 The No. 3 auto maker says the Vision TSi, with a multivalve 3.5 liter six-cylinder engine, is selling well.

†B. n.

Zoology. A multivalve shell; an animal, esp. a mollusc, having such a shell. Obsolete.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > Testacea (shelled molluscs) > shelled mollusc > shell

seashella900

shale1561

buckie1596

caracol1622

valve1661

spire1681

umbilicus1688

conch-shell1697

wart-shell?1711

needle1713

multivalve1753

concha1755

periosteum1758

conch1773

devil's claw1773

furbelow1776

peewit's egg1776

worm-tube1776

rosebud1815

sheath1815

periostracum1833

epicuticle1885

epicuticula1886

leg of mutton1891

trivalve1891

1753 Chambers's Cycl. Suppl. Multivalves, in natural history, the name of a general class of shell-fish distinguished from the univalves, which consist of only one shell, and the bivalves, which consist of two, by their consisting of three or more shells.

1776 E. M. da Costa Elements Conchol. 242 Multivalves. Shells composed of many pieces or valves.

1851 S. P. Woodward Man. Mollusca i. 36 Most of the multivalves of old authors were articulate animals.

This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022).

单词	multivalve
释义	multivalveadj.n. Brit. /ˈmʌltɪˌvalv/, U.S. /ˈməltiˌvælv/; see also multi- comb. form. Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: multi- comb. form, valve n.¹ Etymology: < multi- comb. form + valve n.¹, after post-classical Latin multivalvis (M. Lister Historiæ sive Synopsis Methodicæ Conchyliorum (1687) plate 430, also Linnaeus Systema Naturæ (new ed., 1756) 82; compare Linnaeus's division Multivalvia ( Systema Naturæ (ed. 10, 1758) I. 645)). Compare French multivalve (1752). Compare earlier bivalve adj., univalve adj. A. adj. †1. Zoology and Botany. Having more than two valves. a. Of molluscs and crustaceans (e.g. chitons and barnacles). Cf. valve n.¹ 2. Obsolete. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [adjective] > of parts of molluscs > of shell or parts of shell testaceous1668 trivalvous1681 articulate1685 tabulous1734 concamerated1747 costated1751 ribbed1752 multivalve1753 umbilical1755 multivalved1759 trichite1765 right-handed1776 ventricose1777 unequivalved1788 sinistral1803 white-lipped1813 white-mouthed1815 turriculated1822 umbonial1824 turreted1826 siphunculated1828 columellar1829 sinistrorsal1830 canaliferous1834 spirivalve1835 turrited1835 versant1839 mitriform1843 paucispiral1843 turriculate1843 siphuncled1847 ventricous1850 camerated1851 convolute1851 perforated1851 parietal1854 septiferous1854 planorbiform1856 planorboid1856 trivalved1856 turrite1856 siphunculate1875 turriform1875 umbonic1877 costate1881 interlocular1888 varicated1891 lirate1894 evolute1896 1753 Chambers's Cycl. Suppl. at Pollicipes They are multivalve flat shells, of a triangular figure, each being composed of several laminæ. 1774 O. Goldsmith Hist. Earth VII. 61 Multivalve Shell-fish may be considered as animals shut up in round boxes. 1828 J. Stark Elements Nat. Hist. II. 122 The shell of the Cirripeda is always multivalve. 1850 I. Williams Seven Days 252 Spiral, or orb'd, cornute, or annular, Bivalve, or multivalve;—what tongue shall tell Their forms testaceous. 1898 Science 26 Aug. 254/2 The barnacles and ostracodes, with their multivalve or bivalve carapaces. b. Of parts of plants. Cf. valve n.¹ 4a. Obsolete. ΘΚΠ the world > plants > part of plant > reproductive part(s) > seed > seed-vessel or pericarp > [adjective] > having or between divisions or sections bivalve1737 valved?1768 trivalvular1785 multivalve1793 univalvular1793 univalved1823 bivalvular1830 intervalvular1830 bivalved1852 1793 T. Martyn Lang. Bot. sig. M5 Multivalvis gluma, a multivalve or many-valved glume. 1813 J. M. Good et al. Pantologia Multivalve Glume,..having more than two valves. 1831 W. Macgillivray tr. A. Richard Elem. Bot. 274 A Pericarp is..Multivalve, when it divides into a greater number of valves or distinct segments. c. Of parts of insects. Cf. valve n.¹ 3. Obsolete. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [adjective] > of abdomen multivalve1819 superimposited1826 1819 G. Samouelle Entomologist's Compend. 353 Rostrum..Multivalve, forming a tube by means of many valves uniting. 1826 W. Kirby & W. Spence Introd. Entomol. IV. 373 Tail of the female without a terebrant, or pungent multivalve ovipositor. 1852 Amer. Whig Rev. Aug. 159/2 The sight of the butterfly and the moth invariably leads them to flowers, to suck whose nectar their multivalve tubes are given them. 2. a. Of the heart: having many valves. In quot. figurative. rare. ΚΠ 1869 Atlantic Monthly Feb. 141/1 His heart was multivalve; he could love a dozen at once in various modes and degrees. b. Medicine. Affecting or relating to more than one valve of the heart; = multivalvular adj. ΚΠ 1966 Amer. Jrnl. Cardiol. 17 133/1 During the past 2.5 yr., 75 patients (not including those with multivalve replacement) have undergone aortic ball-valve replacement. 1976 Jrnl. Thoracic & Cardiovascular Surg. 71 230 Variables associated with higher incidence of late deaths are large left atrial size, patient age at operation, and multivalve disease. 1988 Arch. Internal Med. 148 2461 Surgery was required for..two of four patients with multivalve involvement. 1997 Amer. Heart Jrnl. 133 64 Double-valve balloon valvotomy is feasible and safe..in selected patients with multivalve disease. 3. Electronics. Having many thermionic valves. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [adjective] > having many valves multivalve1920 1920 Wireless World Jan. 574/2 More than one valve may be connected in cascade to form a multi-valve amplifier. 1957 Wireless World July 310 (heading) Multi-valve cathode follower circuits. 4. Mechanics. a. Having several or many mechanical valves. ΚΠ 1979 Hydraulics & Pneumatics June 53 (title) Multi-valve circuit controls hydraulic elevators. 1987 Vet. Rec. 121 250/1 The multivalve or ball claw was developed to prevent the detrimental effects on udder disease..during machine milking. b. spec. Of an engine, esp. a car engine: having more than the usual two valves per cylinder (usually four). ΚΠ 1986 Automotive Industries Oct. 29/1 A total of twelve cars on the US market are now equipped with four valves per cylinder... Leader of the pack is Toyota with about 200,000 multi-valve engines now installed. 1990 Independent on Sunday 18 Feb. 5/2 The stunning performance that only a turbo-charged, multi-valve engine can deliver. 1993 Wall St. Jrnl. 19 Feb. a9/3 The No. 3 auto maker says the Vision TSi, with a multivalve 3.5 liter six-cylinder engine, is selling well. †B. n. Zoology. A multivalve shell; an animal, esp. a mollusc, having such a shell. Obsolete. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > Testacea (shelled molluscs) > shelled mollusc > shell seashella900 shale1561 buckie1596 caracol1622 valve1661 spire1681 umbilicus1688 conch-shell1697 wart-shell?1711 needle1713 multivalve1753 concha1755 periosteum1758 conch1773 devil's claw1773 furbelow1776 peewit's egg1776 worm-tube1776 rosebud1815 sheath1815 periostracum1833 epicuticle1885 epicuticula1886 leg of mutton1891 trivalve1891 1753 Chambers's Cycl. Suppl. Multivalves, in natural history, the name of a general class of shell-fish distinguished from the univalves, which consist of only one shell, and the bivalves, which consist of two, by their consisting of three or more shells. 1776 E. M. da Costa Elements Conchol. 242 Multivalves. Shells composed of many pieces or valves. 1851 S. P. Woodward Man. Mollusca i. 36 Most of the multivalves of old authors were articulate animals. This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022). < adj.n.1753
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