restrainer

re·strain  (r-strn)

tr.v. re·strained, re·strain·ing, re·strains

1.

a. To hold back or keep in check; control: couldn't restrain the tears.

b. To hold (a person) back; prevent: restrained them from going.

2. To deprive of freedom or liberty.

3. To limit or restrict.

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[Middle English restreinen, from Old French restraindre, restreign-, from Latin restringere, to bind back; see restrict.]

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re·straina·ble adj.

re·strained·ly (-strnd-l) adv.

re·strainer n.

Synonyms: restrain, curb, check, bridle, inhibit
These verbs mean to hold back or keep under control. Restrain implies restriction or limitation, as on one's freedom of action: "a wise and frugal government, which shall restrain men from injuring one another" (Thomas Jefferson).
To curb is to restrain as if with reins: "You might curb your magnanimity" (John Keats).
Check implies arresting or stopping, often suddenly or forcibly: "a light to guide, a rod/To check the erring" (William Wordsworth).
To bridle is often to hold in or govern one's emotions or passions: I tried with all my might to bridle my resentment.
Inhibit usually connotes a check on one's actions, thoughts, or emotions: A fear of strangers inhibited his ability to travel.

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restrainer [rɪˈstreɪnə]

n

1. a person who restrains

2. (Miscellaneous Technologies / Photography) a chemical, such as potassium bromide, added to a photographic developer in order to reduce the amount of fog on a film and to retard the development

Thesaurus

Noun	1.	restrainer - a chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film chemical, chemical substance - material produced by or used in a reaction involving changes in atoms or molecules potassium bromide - a white crystalline salt (KBr) used as a sedative and in photography
	2.	restrainer - a person who directs and restrains controller individual, mortal, person, somebody, someone, soul - a human being; "there was too much for one person to do" nazi - derogatory term for a person who is fanatically dedicated to, or seeks to control, some activity, practice, etc. overcomer, subduer, surmounter - someone who overcomes and establishes ascendancy and control by force or persuasion suppresser, suppressor - someone who suppresses; "dictators are suppressors of free speech" withholder - a person who restrains or checks or holds back