'Restrainer' definitions:
Definition of 'restrainer'
From: WordNet
noun
A chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film
noun
A person who directs and restrains [syn: restrainer, controller]
Definition of 'Restrainer'
From: GCIDE
- Restrainer \Re*strain"er\, n. One who, or that which, restrains. [1913 Webster]