protruder

noun

protruder

noun

Etymology From protrude + -er.

1

That which protrudes.

The Muscles of the Tongue are: the Genio-hyoglossus, which is the protruder; — the Hyoglossus, which is the depressor or retractor, or muscle which draws the tongue in; […]1895, Edmond Souchon, Resume of Lectures on Anatomy, page 10:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.