sealer

/ˈsilər/

/ˈsilə/

Other forms: sealers

Definitions of sealer

1. noun

   a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface)
   synonyms: sealant

   types:

   caulk, caulking

   a waterproof filler and sealant that is used in building and repair to make watertight

   type of:

   sealing material

   any substance used to seal joints or fill cracks in a porous surface
2. noun

   an official who affixes a seal to a document
   type of:

   functionary, official

   a worker who holds or is invested with an office