hyoid vs hyoid bone

hyoid and hyoid bone both are nouns.

Word	Noun	Adjective	Verb	Adverb
hyoid	Yes	Yes	No	No
hyoid bone	Yes	No	No	No

As nouns, hyoid and hyoid bone are synonyms defined as:

hyoid and hyoid bone: a U-shaped bone at the base of the tongue that supports the tongue muscles

Other synonyms of hyoid include os hyoideum.

hyoid (noun)	hyoid bone (noun)
a U-shaped bone at the base of the tongue that supports the tongue muscles	a U-shaped bone at the base of the tongue that supports the tongue muscles

hyoid (adjective)	hyoid bone (adjective)
of or relating to the hyoid bone