sealer

noun

1. an officer appointed to examine and test weights and measures, and to set a stamp upon such as are true to the standard.
2. a substance applied to a porous surface as a basecoat for paint, varnish, etc.

noun

1. a person or ship engaged in hunting seals.

noun

1. a person or thing that seals
2. (formerly in Britain and currently in the US) an official who examines the accuracy of weights and measures
3. a coating of paint, varnish, etc, applied to a surface to prevent the absorption of subsequent coats

noun

1. a person or ship occupied in hunting seals