nautiloidn.adj.
/ˈnɔːtᵻlɔɪd/, /ˈnɔːtl̩ɔɪd/, U.S. /ˈnɔdlˌɔɪd/, /ˈnɑdlˌɔɪd/ A. n.
A mollusc resembling a chambered nautilus; (Zoology) a cephalopod of the subclass Nautiloidea, having a many-chambered external shell with simple septa. Also: a fossil formed from the shell of such a mollusc.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Tetrabranchiata > family Nautilidae > member of
sailer1668
sail-shell?1711
nautiloida1728
pearl snail1731
sailor1776
pearly nautilus1800
a1728 J. Woodward Attempt Nat. Hist. Fossils Eng. (1729) ii. 24 Two Nautiloides, or Bodies form'd in Shells of the Nautilus.
1883 Proc. Boston Soc. Nat. Hist. 297 This is..applicable to all the families of Nautiloids in which the annular lobes appear.
1912 Brit. Mus. Return in Parl. Papers LXVI. 703 The Carboniferous Nautiloids are being arranged in table-case 2.
1946 H. Woods Palæontol. Invertebr. (ed. 8) 335 The most primitive of the Ammonoids..differs but little from some Silurian Nautiloids.
1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) iv. 120 The phragmocone when found alone is apt to be mistaken for an Orthocone nautiloid with a marginal siphuncle.
2000 C. Tudge Variety of Life ii. vii. 244 Taken all in all, nautiloids put up a good show of being primitive.
B. adj.
Resembling a chambered nautilus in form; (Zoology) of, relating to, or characteristic of the subclass Nautiloidea.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [adjective] > belonging to order Tetrabranchiata > relating to the nautili > having form of nautilus
nautiloid1847
nautiliform1896
1847 in Webster's Amer. Dict. Eng. Lang. Nautiloid.
1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) viii. 222 The..structure of their shell, many of which resemble those of the nautiloid molluscs.
1881 W. B. Carpenter Microscope 546 We find in the nautiloid spire a tendency to pass..into the cyclical mode of growth.
1947 Philos. Trans. (Royal Soc.) 232 483 Naef..considered that the ancestral gastropod was free-swimming and nautiloid in form.
1991 N. Eldredge Fossils ii. 36 Life fairly teemed in those Devonian tropical seas, with..clams, snails, nautiloid and ammonoid cephalopods [etc.].
This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).
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n.adj.a1728