omohyoid UK /əʊ.məʊˈhʌɪ.ɔɪd/US /ˌoʊ.moʊˈhaɪˌɔɪd/adjective 2noun 1forms 1 adjective2 •Of or relating to the shoulder and the hyoid bone. •Of or relating to the omohyoid muscle. noun1 •Ellipsis of omohyoid muscle. formsomohyoids