nine•ty-ninthPronunciation: (nīn'tē-nīnth'), [key]
next after the ninety-eighth; being the ordinal number for 99.
being one of 99 equal parts.
a ninety-ninth part, esp. of one (1/99
the ninety-ninth member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.