hypostome

[ hahy-puh-stohm ]

noun

, Zoology.

1. any of several parts or organs of the mouth, as the labrum of a crustacean.

Other Words From

• hypo·stomi·al adjective

Word History and Origins

Origin of hypostome¹

First recorded in 1860–65; hypo- + -stome

Example Sentences

The supposed hypostome is exceedingly doubtful; it lies dorsad of the crushed glabellar skeleton.

From Project Gutenberg

They are characterized by the fact that the hypostome, or "tongue" (fig. 45) is large and file-like, roughened by sharp teeth.

From Project Gutenberg