protruder

名词 n.

英文释义

名词 n.
  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; […]

词形变化

protruders plural

词源

From protrude + -er.
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