Webster's Revised Unabridged Dictionary · 1913

Muzzle

Muzzle , noun

[Old English mosel, Old French musel, French museau muzzle or snout, Late Latin musellus, from musus, morsus. See Muse, v. i., and compare Morsel.]

1.
The projecting mouth and nose of a quadruped, as of a horse; a snout.
2.
The mouth of a thing; the end for entrance or discharge; as, the muzzle of a gun.
3.
A fastening or covering (as a band or cage) for the mouth of an animal, to prevent eating or vicious biting.
With golden muzzles all their mouths were bound — Dryden
Collocations (1)
Muzzle sight (Gunnery) , See Dispart, n., 2.

Muzzle , transitive verb

[French museler.]

1.
To bind the mouth of; to fasten the mouth of, so as to prevent biting or eating; hence, figuratively, to bind; to sheathe; to restrain from speech or action; as, the dictator muzzled all the newspapers.
My dagger muzzled. — Shakespeare
Thou shalt not muzzle the ox when he treadeth out the corn. — Deut. xxv. 4
2.
To fondle with the closed mouth. [Obsolete] — L'Estrange

Muzzle , intransitive verb

To bring the mouth or muzzle near.
The bear muzzles and smells to him. — L'Estrange