plural of sealed beam

(technology) A type of electric lamp for producing a beam of light in which the filament is sealed inside a unit consisting of the reflector and lens so as to ensure the alignment of the beam and to protect the reflector from becoming dirty or tarnished.

simple past tense and past participle of seal off

plural of sealed source

plural of sealed bid

(idiomatic) One will not tell anyone else; one is keeping a secret.

Completed, particularly with respect to the conveyance of something.

Wax formerly melted onto a letter to seal it; the picture of the sender's seal was often pressed into the wax as evidence that the letter had not been opened.

An arctic seal, Cystophora cristata, notable for the fleshy bulge on its forehead and nose.

An airtight seal.