synaeresis
n. ஈருயிர் எழுத்துக்கள் ஒன்றுதல், ஐபோலாதல்.
Syn*ær"e*sis, Syn*er"e*sis, n. Etym: [NL., fr. Gr. Syn-, and Heresy.] (Gram.) Defn: The union, or drawing together into one syllable, of two vowels that are ordinarily separated in syllabification; synecphonesis; -- the opposite of diæresis.