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Webster 1913 Edition

Noun.

[NL., fr. Gr. [GREEK] long.]

(Pron.)

A short, straight, horizontal mark [-], placed over vowels to denote that they are to be pronounced with a long sound; as,

ā

, in

dāme

;

ē

, in

sēam

, etc.

Syn. – macrotone.

See also: macron, mácron, and Macron

macrón m ‎(plural macrones)