trivalven.adj.
/ˈtrʌɪvalv/ Natural History.
A. n.
A shell having three valves.
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
1891 Cent. Dict. Trivalve, a. and n.
B. adj.
Having three valves.
ΚΠ
1776 E. M. da Costa Elements Conchol. 278 These Shells are trivalves, and have two large valves, with a small valve placed between them, near to the hinge.
1891 [see sense A.]. Derivatives
ˈtrivalved adj.
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
1856 W. Clark tr. J. van der Hoeven Handbk. Zool. I. 190 Head trivalved.
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
1681 N. Grew Musæum Regalis Societatis ii. i. iv. 198 Trivalvous, i.e. composed of three Sides or Plates joyned together by the length of the Shell.
1693 T. P. Blount Nat. Hist. 60 Bauhinus Pictures it [the Ginger plant]..with a trivalvous Cod.
triˈvalvular adj.
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
1785 T. Martyn tr. J.-J. Rousseau Lett. Elements Bot. xx. 284 Purslain has..a capsule of one cell..; in some species it opens horizontally, in others it is trivalvular.
This entry has not yet been fully updated (first published 1915; most recently modified version published online December 2021).
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n.adj.1681