Definition of supraterrestrial in English:

supraterrestrial

Pronunciation /ˌsuːprətɪˈrɛstrɪəl/ /ˌsjuːprətɪˈrɛstrɪəl/

adjective

Origin

Mid 19th century. From supra- + terrestrial. Compare earlier superterrestrial, superterraneous, subterrestrial.