subglenoid /ˌsəbˈɡliˌnɔɪd/ adjective1 •Located immediately below the glenoid fossa.The patient was a cellarman, aged 58, who had eight weeks fallen on his elbow and received a subglenoid dislocation of the humerus, which, however, was not detected at the time. — 1878 formsmore subglenoid · most subglenoid