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Speech sound composed of plosion, occlusion, and frication (an audible rush of air) as in the 'ts' sound of mats or the 'ch' sound of church.
[L. af-frico, pp. af-fricatus, fr. ad- toward, against, + frico, to rub, + -ive, adj. suffix]

affricative (əfrik´ətiv),

n a fricative speech sound initiated by a plosive.