n. 使沉默的人, 消音器, 消音装置

[化] 消声器; 消音器

Silencer \Si"lenc*er\, n.
One that silences; specif.:
(a) The muffler of an internal-combustion engine.
(b) Any of various devices to silence the humming noise of
telegraph wires.
(c) A device for silencing the report of a firearm shooting
its projectiles singly, as a tubular attachment for the
muzzle having circular plates that permit the passage of
the projectile but impart a rotary motion to, and thus
retard, the exploding gases.
[Webster 1913 Suppl.]

Muffler \Muf"fler\, n.
1. Anything used in muffling; esp., a scarf for protecting
the head and neck in cold weather; a tippet.

Fortune is painted blind, with a muffler above her
eyes. --Shak.

2. (Mus.) A cushion for terminating or softening a note made
by a stringed instrument with a keyboard.

3. A kind of mitten or boxing glove, esp. when stuffed.

4. One who muffles.

5. (Mach.) Any of various devices to deaden the noise of
escaping gases or vapors, as a tube filled with
obstructions, through which the exhaust gases of an
internal-combustion engine, as on an automobile, are
passed (called also {silencer}).
[Webster 1913 Suppl.]