Able to be submerged.
A small nonmilitary, non-nuclear submarine for exploration.
A term used primarily by some navies for nuclear submarines, termed "true submersibles", because they cannot retroactively declare that their non-nuclear submarines should be called by a different name.
A very small "baby" submarine designed for specific localized missions, usually while tethered to a submarine or ship for life support and communications. Slang synonyms: midget-submarine, anchor.
A retroactive term used for non-nuclear submarines; nuclear submarines are termed "true submarines".
Resistant to the effects of water.
Incapable of failing; unassailable.
Made of or covered with material that doesn't allow water in.
A substance or preparation for rendering cloth, leather, etc., impervious to water.
Cloth made waterproof, or any article made of such cloth, or of other waterproof material, as rubber; especially, an outer garment made of such material.
To make waterproof or water-resistant.