Dis*place"ment (?), n. [Cf. F.
déplacement.] 1. The act of
displacing, or the state of being displaced; a putting out of
place.
Unnecessary displacement of funds.
A. Hamilton.
The displacement of the sun by
parallax.
Whewell.
2. The quantity of anything, as water,
displaced by a floating body, as by a ship, the weight of the
displaced liquid being equal to that of the displacing
body.
3. (Chem.) The process of extracting
soluble substances from organic material and the like, whereby a
quantity of saturated solvent is displaced, or removed, for
another quantity of the solvent.
Piston displacement (Mech.), the
volume of the space swept through, or weight of steam, water, etc.,
displaced, in a given time, by the piston of a steam engine or
pump.