n. The separate pronunciation of two vowels usually united as a diphthong; by extension of meaning, separate pronunciation of any two adjacent vowels, or the consequent division of one syllable into two. See dialysis and distraction, 8.n. The sign (¨) regularly placed over the second of two contiguous vowels to indicate that they are pronounced separately; the same sign used for other purposes.n. In prosody, the division made in a line or a verse by coincidence of the end of a foot and the end of a word; especially, such a division at the close of a colon or rhythmic series. It is strictly distinct from, but often included under, cesura (which see).n. In pathology, a solution of continuity, as an ulcer or a wound.n. In crustaceans, the division in the outer branch of the last pleopods.