Dictionary
nun•a•tion
Pronunciation: (nu-nā'shun), [key]—
n. Arabic Gram.
the doubling, in writing, of the final vowel symbol to indicate the addition, in speech, of the indefinite suffix
n to certain nouns.
Also,nunnation.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.