Pronunciation: (nīn'tē-ātth', -āth'), [key]
1. next after the ninety-seventh; being the ordinal number for 98.
2. being one of 98 equal parts.
1. a ninety-eighth part, esp. of one (1/98).
2. the ninety-eighth member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.