(anatomy) Of or pertaining to the chin and hyoid bone. / (anatomy) Of or pertaining to the geniohyoid muscle.

simple past tense and past participle of un-deadstock

An island of Japan, part of the Yaeyama archipelago, the westmost inhabited island of Japan. / A Ryukyuan language spoken on the island of Yonaguni.

(sociology) The study of interactions within and between societies.