Re*sist"ance(-ans), n. [F. rsistance, LL. resistentia, fr. resistens, -entis, p. pr. See Resist.] 1. The act of resisting; opposition, passive or active.
When King Demetrius saw that . . . no resistance was made against him, he sent away all his forces.1. Macc. xi. 38.
(Physics) The quality of not yielding to force or external pressure; that power of a body which acts in opposition to the impulse or pressure of another, or which prevents the effect of another power; as, the
resistance of the air to a body passing through it; the
resistance of a target to projectiles.
3. A means or method of resisting; that which resists.
Unfold to us some warlike resistance.Shak.
(Elec.) A certain hindrance or opposition to the passage of an electrical current or discharge offered by conducting bodies. It bears an inverse relation to the conductivity, -- good conductors having a small resistance, while poor conductors or insulators have a very high resistance. The unit of resistance is the ohm.
(Elec.), a rheostat consisting of a box or case containing a number of resistance coils of standard values so arranged that they can be combined in various ways to afford more or less resistance. --
(Elec.), a coil of wire introduced into an electric circuit to increase the resistance. --
Solid of least resistance
(Mech.), a solid of such a form as to experience, in moving in a fluid, less resistance than any other solid having the same base, height, and volume.
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Tue 18th December 2018