Definition of reseal
: to seal (something) again: such as
a : to close (something) tightly again so that air, liquid, etc., cannot get in or out reseal a container resealed the hole/leak
b : to close (an opened envelope, bag, etc.) again especially by sticking or pressing two of its parts together If not resealed well, cereal, chips, rice, and pasta go stale … — Good Housekeeping He taught me how to … steam and reseal envelopes …— Marshall N. Klimasewiski Staff analysts know the molecular structure of the glue Goody's uses to seal its containers of headache powder, so investigators can tell if someone opened a package and resealed it.— Howard Schneider
c : to cover the surface of (something) again with a protective coating The grout needs to be resealed regularly.
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