Macron

['mækrɒn] or ['mekrɑn]

Definition

(noun.) a diacritical mark (-) placed above a vowel to indicate a long sound.

Inputed by Annie--From WordNet

Definition

(n.) A short, straight, horizontal mark [-], placed over vowels to denote that they are to be pronounced with a long sound; as, a, in dame; /, in s/am, etc.

Checker: Wendy

Definition

n. a straight line placed over a vowel to show that it is long:—opp. to Breve the mark of a short vowel.

Checker: Nanette