Pronunciation: (twen'tē-thûrd', twun'-), [key]
1. next after the twenty-second; being the ordinal number for 23.
2. being one of 23 equal parts.
1. a twenty-third part, esp. of one (1/23).
2. the twenty-third member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.