Pronunciation: (thûr'tē-nīnth'), [key]
1. next after the thirty-eighth; being the ordinal number for 39.
2. being one of 39 equal parts.
1. a thirty-ninth part, esp. of one (1/39).
2. the thirty-ninth member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.