Dictionary
ac•ciac•ca•tu•ra
Pronunciation: (u-chä"ku-toor'u; It.ät chäk"kä-tOO'rä), [key]—
n.,
—pl. -tu•ras, -tu•rePronunciation: (-toor'ā, -toor'ē; It.-tOO're). [key]
Music.
a short grace note one half step below, and struck at the same time as, a principal note.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.