De*flec"tion (?), n. [L.
deflexio, fr. deflectere: cf. F.
déflexion.] 1. The act of turning
aside, or state of being turned aside; a turning from a right line or
proper course; a bending, esp. downward; deviation.
The other leads to the same point, through certain
2. (Gunnery) The deviation of a shot
or ball from its true course.
3. (Opt.) A deviation of the rays of
light toward the surface of an opaque body; inflection;
4. (Engin.) The bending which a beam
or girder undergoes from its own weight or by reason of a