( chiefly Brit. also inflexion )
■ noun
1》 Grammar a change in the form of a word (typically the ending) to express a grammatical function or attribute such as tense, mood, person, number, case, and gender.
2》 the modulation of intonation or pitch.
3》 chiefly Mathematics a change of curvature from convex to concave.
Derivatives
~al adjective
~ally adverb
~less adjective