genioglossus

• geniohyoglossus

Borrowed from New Latin genīoglōssus, clipping of musculus genīoglōssus (“genioglossal muscle”).

• (Received Pronunciation) IPA^(key): /ˌd͡ʒiː.ni.ə(ʊ)ˈɡlɒs.əs/, /d͡ʒɪˌnʌɪ.əˈɡlɒs.əs/
• (General American) IPA^(key): /ˌd͡ʒi.ni.oʊˈɡlɑs.əs/, /ˌd͡ʒi.ni.oʊˈɡlɔs.əs/
• Rhymes: -ɒsəs, -ɔːsəs

genioglossus (plural genioglossi)

1. (anatomy) A flat, fan-shaped muscle that originates from the superior mental spine and inserts onto the undersurface of the tongue and onto the hyoid bone, acting mainly to extend, protrude or depress the tongue.

• “genioglossus”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “genioglossus”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.

From Ancient Greek γένειον (géneion, “the chin”) +‎ Ancient Greek γλῶσσᾰ (glôssa, “the tongue”) +‎ -us (adjectival suffix).

• (Classical) IPA^(key): /ɡe.niː.oˈɡloːs.sus/, [ɡɛniːɔˈɡɫ̪oːs̠ːʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /d͡ʒe.ni.oˈɡlos.sus/, [d͡ʒenioˈɡlɔsːus]

genīoglōssus (feminine genīoglōssa, neuter genīoglōssum); first/second-declension adjective (New Latin)

1. (anatomy) Of the chin and the tongue.

   musculus genīoglōssus ― the genioglossus muscle

First/second-declension adjective.

• → English: genioglossus