Definition of "sealer"

A tool used to seal something.  examples

A person who is employed to seal things.

1. An officer responsible for sealing writs or instruments, stamping weights and measures, etc.  examples

A coating designed to prevent excessive absorption of finish coats into porous surfaces; a coating designed to prevent bleeding.  examples

(sports, colloquial) A goal, shot, point, etc., scored close to fulltime so that it becomes impossible for the losing side to score enough to win.  examples

A person who hunts seals.  examples

A vessel engaged in the business of capturing seals.  examples