Dictionary
de•cen•ni•um
Pronunciation: (di-sen'ē-um), [key]—
n.,
—pl. -cen•ni•ums, -cen•ni•aPronunciation: (-sen'ē-u). [key]
a period of ten years; a decade.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.