restrainer Edit
Noun
    a chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film

restrainer Edit
Noun
    a person who directs and restrains

Entries from Olam Open Database

Restrainer(noun)::
    നിയന്ത്രിക്കുന്നവന്‍,

visit http://olam.in/ for details