Толковый словарь английского языка Oxford English Reference - inflection

n. (also inflexion) 1 a the act or condition of inflecting or being inflected. b an instance of this. 2 Gram. a the process or practice of inflecting words. b an inflected form of a word. c a suffix etc. used to inflect, e.g. -ed. 3 a modulation of the voice. 4 Geom. a change of curvature from convex to concave at a particular point on a curve. Derivatives inflectional adj. inflectionally adv. inflectionless adj. Etymology: F inflection or L inflexio (as INFLECT)