suboceanic

adjective
sub·​oce·​an·​ic | \ ˌsəb-ˌō-shē-ˈa-nik How to pronounce suboceanic (audio) \

Definition of suboceanic

: situated, taking place, or formed beneath the ocean or its bottom suboceanic oil resources

First Known Use of suboceanic

1837, in the meaning defined above

Keep scrolling for more