for•ty-ninthPronunciation: (fôr'tē nīnth'), [key]
next after the forty-eighth; being the ordinal number for 49.
being one of 49 equal parts.
a forty-ninth part, esp. of one (1/49
the forty-ninth member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.