surface-to-underwater

[ sur-fis-too-uhn-der-waw-ter, -wot-er ]

adjective

1. (of a missile, message, etc.) traveling from the surface of the earth to a target underwater.

adverb

1. from the surface of the earth to a target underwater.

Word History and Origins

Origin of surface-to-underwater¹

First recorded in 1945–50