Meaning of the word subaqueous in English

What does subaqueous mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

subaqueous

US /sʌbˈeɪkwiəs/
UK /sʌbˈeɪkwiəs/

Adjective

existing, occurring, or formed under water

Example:
Divers explored the subaqueous caves.
The ancient city was discovered to have subaqueous ruins.