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Webster 1913 Edition
Dieresis
{
Di-ær′e-sis
,Di-er′e-sis
}(?; 277)
, Noun.
pl.
Diæreses
or Diereses
(#)
. [L.
diaeresis
, Gr. [GREEK], fr. [GREEK] to divide; διά
through, asunder + [GREEK] to take. See Heresy
.] 1.
(Gram.)
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