The impression of a seal worn on the hand as a ring.

simple past tense and past participle of seal off

(transitive) To physically isolate an area or building for security reasons preventing passage of humans or vehicles.

A specialised washer that ensures a gas-tight seal between the cylinder yoke or regulator of an anaesthetic machine or any medical device requiring a gas supply, and a gas cylinder.

plural of fur seal

(archaic) Any of several species of eared seal, but especially the northern fur seal, Callorhinus ursinus

plural of ursine seal

plural of bearded seal

Erignathus barbatus, a medium-sized pinniped with conspicuous whiskers, found in and around the Arctic Ocean.

plural of seal point