Definition of muzzles:
(n) :
A device used to prevent an animal from biting or eating, which is worn on its snout.
(n) :
The protruding part of an animal's head which includes the nose, mouth and jaws.
(n) :
(firearms) The mouth or the end for entrance or discharge of a gun, pistol etc., that the bullet emerges from.
(v) :
(transitive, figuratively) To restrain (from speaking, expressing opinion or acting); to gag; to silence; to censor.
(v) :
(transitive) To bind or confine an animal's mouth by putting a muzzle, as to prevent it from eating or biting.
(n) :
(slang, derogatory, by extension) A person's mouth.