yod coalescence noun1 •A process in English phonology whereby the clusters [dj], [tj], [sj], and [zj] become [dʒ], [tʃ], [ʃ], and [ʒ], respectively, through mutual assimilation.Some English dialects with /dj/ and /tj/ within a morpheme have gradient amounts of affrication, from [dj] in careful speech to extreme “yod coalescence” approximating [dʒ][…]. — 1995
