patelloidadj.n.
/pəˈtɛlɔɪd/, U.S. /pəˈtɛlˌɔɪd/ Zoology.
A. adj.
= patelliform adj.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [adjective] > of superorder Branchifera > belonging to order Prosobranchiata > relating to or of the form of the limpet
patelloid1837
1837 Penny Cycl. IX. 458/2 Patelloid Entomostoma; that is, one whose shell is very large in its totality, very flattened, with a spire but little marked, and without a columella.
1851 G. F. Richardson Introd. Geol. (1855) viii. 243 Some shells have a patelloid form.
1898 Science 26 Aug. 251/1 A minute discinoid or patelloid shell.
1978 G. Ubaghs in R. C. Moore Treat. Invertebr. Paleontol. T. I. 170/2 The projecting processes are thin and commonly fractured along their upper margin, so that they take the appearance of separate plates, called ‘patelloid plates’ by Hall (1858).
1992 Jrnl. Paleontol. 66 99 The morphology of the anal sac and the lack of ‘patelloid’ processes in the arms indicates that Cupulocrinus sepulchrum Ramsbottom from the Upper Ordovician of Scotland belongs to Dendrocrinus.
B. n.
A patelliform object; a thing resembling a patella.
ΚΠ
1890 Cent. Dict. Patelloid n., a patelliform shell.
1960 Jrnl. Ecol. 23 The patelloids are of less ecological significance on the Australian mainland than in Tasmania.
2001 Anatomia, Histologia, Embryologia 30 289 Only the family of bandicoots (Peramelidae) possessed a typical patella. The other species revealed a patelloid consisting of fibrocartilage.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).
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adj.n.1837