ostreiformadj.
/ˈɒstrɪᵻfɔːm/, U.S. /ˈɑstriᵻˌfɔrm/ Chiefly Zoology.
Having the form of an oyster or of oysters; resembling an oyster.
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the world > food and drink > food > animals for food > seafood > [adjective] > having form of oyster
ostreiform1840
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Pelecypoda or Conchifera > [adjective] > of or relating to oyster > of the nature of or resembling
oyster-like1665
ostreaceous1678
ostraceous1822
ostreiform1840
ostracine1890
1840 Penny Cycl. XVII. 361/2 It exists also in the Ostreiform Gryphææ.
1895 Edinb. Rev. Oct. 369 The Londoner's diet might be thought to be much more largely ostreiform.
1920 Brit. Mus. Return 134 An ostreiform shell from the Eocene, Mokattam quarries, Cairo.
1954 Syst. Zool. 3 135/1 Exogyroid and gryphoid oysters and ostreiform Gryphaeas and Exogyras are found.
1987 Philos. Trans. (Royal Soc.) B. 317 353 The gross form of the pterygoid plates is similar to that of Chirodipterus [sc. a dipnoan fish]..: their outlines are ostreiform rather than subtriangular.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).
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adj.1840