Entry 1 sense Webster, 1913 Omohyoid · O·mo·hy·oid · IPA /ˌoʊ.moʊˈhaɪˌɔɪd/ 01 a. Of or pertaining to the shoulder and the hyoid bone; as, the omohyoid muscle. 1. Of or pertaining to the shoulder and the hyoid bone; as, the omohyoid muscle.(Anat.)