pachydontadj.

Brit.

/ˈpakɪdɒnt/, U.S.

/ˈpækiˌdɑnt/

Origin: Probably a variant or alteration of another lexical item. Etymon: pachyodont adj.

Etymology: Probably an alteration of pachyodont adj., with simplification of the medial vowel cluster.

Zoology and Palaeontology.

= pachyodont adj.

ΚΠ

1960 Systematic Zool. 9 49/1 A volcanic archipelago with broad submarine areas shallow enough to favor the development of great reefs of hermatypic corals and pachydont pelecypods.

1979 E. N. K. Clarkson Invertebr. Palaeontol. & Evol. viii. 147/2 Pachydont dentition occurs only in the peculiar hippuritid (rudistid) bivalves, which cement themselves to the substratum by a very large right valve of coral-like form. The teeth are very large, heavy and blunt.

1983 J. Lettau tr. U. Lehmann & G. Hillmer Fossil Invertebr. 110 The most important types of hinge are:..8. Pachydont: one to three unsymmetrical peg-shaped projections fit into corresponding sockets in the opposing valve.

This is a new entry (OED Third Edition, March 2005; most recently modified version published online March 2022).

单词	pachydont
释义	pachydontadj. Brit. /ˈpakɪdɒnt/, U.S. /ˈpækiˌdɑnt/ Origin: Probably a variant or alteration of another lexical item. Etymon: pachyodont adj. Etymology: Probably an alteration of pachyodont adj., with simplification of the medial vowel cluster. Zoology and Palaeontology. = pachyodont adj. ΚΠ 1960 Systematic Zool. 9 49/1 A volcanic archipelago with broad submarine areas shallow enough to favor the development of great reefs of hermatypic corals and pachydont pelecypods. 1979 E. N. K. Clarkson Invertebr. Palaeontol. & Evol. viii. 147/2 Pachydont dentition occurs only in the peculiar hippuritid (rudistid) bivalves, which cement themselves to the substratum by a very large right valve of coral-like form. The teeth are very large, heavy and blunt. 1983 J. Lettau tr. U. Lehmann & G. Hillmer Fossil Invertebr. 110 The most important types of hinge are:..8. Pachydont: one to three unsymmetrical peg-shaped projections fit into corresponding sockets in the opposing valve. This is a new entry (OED Third Edition, March 2005; most recently modified version published online March 2022). < adj.1960
随便看	rockforming rockfree rockfrequenting rockgirded rockgirt rockgoat rockguarded rockgurnard rockhard rockhead rockhearted rockhewn rockhog rockhopper rockhopper penguin rockhoppers rockhound rockhounding rockhoundings rockhounds rockier rockiers rockies rockiest rockily