acrodont

1. not comparableHaving teeth immovably united to the top of the alveolar ridge.

   Pleurodont lizards are such as have the teeth attached by their sides {148} to the inner surface of the jaw, in contradistinction to acrodont lizards, which have the bases of their teeth anchylosed to the summit of the margin of the jaw.

   1871, St. George Mivart, On the Genesis of Species

   1 more example

   The known skeletal remains of Longisquama lack any other diagnostic archosaurian characters [the furcula mentioned by Jones et al. consists of paired clavicles, as Sharov originally noted], but they exhibit two features, acrodont teeth and an interclavicle ( 3 ), that are typical of lepidosaurs.

   2001 March 9, Richard O. Prum with et al., “Longisquama Fossil and Feather Morphology”, in Science, volume 291, number 5510, →DOI, →ISSN, pages 1899–1902

plural acrodonts

1. One of a group of lizards having the teeth immovably united to the top of the alveolar ridge