D defs.my
Entry 1 sense Webster, 1913

Synaeresis

· Syn·aer·e·sis · IPA /sɪˈnɪəɹɪsɪs/
01 n. The union, or drawing together into one syllable, of two vowels that are ordinarily separated in syllabification; synecphonesis; -- the opp…
  1. 1.
    The union, or drawing together into one syllable, of two vowels that are ordinarily separated in syllabification; synecphonesis; -- the opposite of diaeresis.(Gram.)