cardiformadj.
/ˈkɑːdᵻfɔːm/, U.S. /ˈkɑrdəˌfɔrm/ Ichthyology.
Of teeth of a fish: fine and closely spaced like those of a wool card, with sharp, sometimes recurved, points. Also: designating such a tooth or such dentition.
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the world > animals > fish > parts of fish > [adjective] > of teeth
molar1626
cardiform1834
molary1835
villiform1846
ciliiform1849
ctenoid1872
1834 E. Griffith et al. Cuvier's Animal Kingdom X. 503 The anterior edge of the vomer is furnished with a band of cardiform teeth [Fr. petites dentes en cardes].
1875 C. C. Blake Zoology 191 When coarser and straight, or with their points bent back, they [sc. teeth] are cardlike or cardiform.
1916 Zoologist 20 185 There is a strong cardiform tooth on each side of the tongue near the tip.
2009 G. S. Helfman et al. Diversity of Fishes (ed. 2) viii. 124 Surprisingly, many highly predaceous piscivores have limited marginal cardiform dentition that has a rough sandpaper texture and consists of numerous fine, pointed teeth.
This entry has been updated (OED Third Edition, September 2021; most recently modified version published online December 2021).
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adj.1834