Pronunciation: (ā'tē sev'unth), [key]
1. next after the eighty-sixth; being the ordinal number for 87.
2. being one of 87 equal parts.
1. an eighty-seventh part, esp. of one (1/87).
2. the eighty-seventh member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.