lunulen.
/ˈl(j)uːnjʊl/ 1. Natural History. A crescent-shaped mark, spot, etc.
ΘΚΠ
the world > animals > animal body > markings or colourings > [noun] > crescent-shaped mark
lunule1828
lunula1874
lunulation1888
1828 J. Stark Elements Nat. Hist. I. 138 Whitish lunules on the tail-feathers.
1845 H. N. Humphreys & J. O. Westwood Brit. Moths II. 14 With two rather slightly marked strigæ (between which is a white lunule).
2. Geometry. = lune n.3 1 (Cf. lunula n. 1a.)
ΘΚΠ
the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > lune
lunula?a1560
lunular1570
lune1704
lunule1737
meniscus1817
1737 in Bailey vol. II.
1817 H. T. Colebrooke tr. Bhāskara Āchārya in Algebra 96 A lunule or meniscus.
1872 A. De Morgan Budget of Paradoxes 45 This [Porta's Elementa Curvilineorum] is a ridiculous attempt, which defies description, except that it is all about lunules.
3. Conchology. The crescent-shaped depression in front of the umbo. (Cf. lunula n. 4a.)
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > Testacea (shelled molluscs) > shelled mollusc > shell > part of
auricle1665
heel1673
lip1681
mouth1681
whirl1681
rib1711
antihelix1721
canal1734
columella1755
vesture1755
body whirl1776
fent1776
pillar1776
pillar-lip1776
septum1786
aperture1794
body whorl1807
costa1812
seam1816
spine1822
umbo1822
varix1822
peristome1828
summit1828
nucleus1833
concameration1835
lunula1835
nympha1836
nymph1839
lunule1842
peritreme1848
body chamber1851
axis1866
umbone1867
liration1904
1842 G. B. Sowerby Conchol. Man. (ed. 2) 179.
1854 S. P. Woodward Man. Mollusca ii. 298 Cyprina..umbones oblique; no lunule.
1863 J. G. Jeffreys Brit. Conchol. II. 233 Lunule deep and heart~shaped.
1866 R. Tate Plain & Easy Acct. Mollusks Great Brit. ii.
Derivatives
ˈlunuled adj. crescent-shaped.
ΚΠ
1863 Reeve Land & Freshwater Mollusks 236 Shell large, oval-globose, slightly lunuled.
This entry has not yet been fully updated (first published 1903; most recently modified version published online December 2018).
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