called also a diffraction, and deflection, in Optics, is a property of light, by reason of which, when it comes within a certain distance of any body, it will either be bent from it, or towards it; which is a kind of imperfect reflection or refraction. See Optics.

or Point of Inflection, in the higher geometry, is a point where a curve begins to bend a contrary way.

in Grammar, the variation of nouns and verbs, by declension and conjugation.