: a stop and its immediately following release into a fricative that are considered to constitute a single phoneme (such as the \t\ and \sh\ of \ch\ in choose)
borrowed from German Affrikata, borrowed from Latin affricāta, feminine of affricātus, past participle of affricāre "to rub (one thing against another)," from ad-ad- + fricāre "to rub, chafe" — more at friction