DIAERESES

DIAERESIS

dieresis, diaeresis

(noun) a diacritical mark (two dots) placed over a vowel to indicate that it does not form a diphthong with an adjacent vowel

Source: WordNet® 3.1

Noun

diaereses

plural of diaeresis

Source: Wiktionary

DIAERESIS

Di*ær"e*sis, Di*er"e*sis, n.; pl. Diæreses or Diereses. Etym: [L. diaeresis, Gr. Heresy.]

1. (Gram.)

Definition: The separation or resolution of one syllable into two; -- the opposite of synæresis.

2. A mark consisting of two dots [..], placed over the second of two adjacent vowels, to denote that they are to be pronounced as distinct letters; as, coöperate, aërial.

Source: Webster’s Unabridged Dictionary 1913 Edition