Pronunciation: (siks'tē-sev'unth), [key]
1. next after the sixty-sixth; being the ordinal number for 67.
2. being one of 67 equal parts.
1. a sixty-seventh part, esp. of one (1/67).
2. the sixty-seventh member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.