De-flĕc'tion, n.

(-flĕk'shun), n. [Lat. deflexio, from deflectere; Fr. deflexion.] 1. The act of turning aside; a turning from a right line or proper course; deviation. The other leads to the same point, through certain deflections. Lowth.

2. (Naut.) The departure of a ship from its true course.
3. (Opt.) A deviation of the rays of light toward the surface of an opaque body; inflection.