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The Collaborative International Dictionary of English v.0.48 (gcide)

dashpot \dash"pot`\, dash-pot \dash-pot\(d[a^]sh"p[o^]t`), n.
(Mach.)
a mechanical damping device containing a piston that moves in
a fluid-filled chamber to serve as a pneumatic or hydraulic
cushion for a falling weight, as in the valve gear of a steam
engine, to prevent shock.
[1913 Webster WordNet 1.5]

Note: It consists of a chamber, containing air or a liquid,
in which a piston (a), attached to the weight, falls
freely until it enters a space (as below the openings,
b) from which the air or liquid can escape but slowly
(as through cock c), when its fall is gradually
checked.
[1913 Webster]

Note: A cataract of an engine is sometimes called a dashpot.
[1913 Webster]


Cataract \Cat"a*ract\, n. [L. cataracta, catarracles, a
waterfall, Gr. ?, ?, fr. ? to break down; in the passive, to
fall or rush down (of tumors) to burst; kata` down ? to
break.]
1. A great fall of water over a precipice; a large waterfall.
[1913 Webster]

2. (Surg.) An opacity of the crystalline lens, or of its
capsule, which prevents the passage of the rays of light
and impairs or destroys the sight.
[1913 Webster]

3. (Mach.) A kind of hydraulic brake for regulating the
action of pumping engines and other machines; -- sometimes
called {dashpot}.
[1913 Webster]

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