Dash"ism(-z'm), n. The character of making ostentatious or blustering parade or show. [R. & Colloq.]
He must fight a duel before his claim to . . . dashism can be universally allowed.V. Knox.
dash-pot(dsh"pt`), 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]
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.
A cataract of an engine is sometimes called a dashpot.
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Mon 10th December 2018