I. ˈsēlə(r) noun
( -s )
Etymology: Middle English seler, from selen to seal + -er — more at seal
1. : one that seals: as
a. : an official who attests or certifies conformity to a standard of correctness or quality
a sealer of weights and measures
a sealer of leather
b. : one whose work is sealing containers (as jars, bags, boxes) or articles (as storage batteries, radio tubes) ; also : an operator of a sealing machine
c. : a device or machine that seals
a can sealer
d. : a coat (as of size) applied to prevent subsequent coats of paint or varnish from sinking in
2. : capper 5
II. noun
( -s )
Etymology: seal (II) + -er
: a mariner or a ship engaged in hunting seals