fif•ty-sev•enthPronunciation: (fif'tē-sev'unth), [key]
next after the fifty-sixth; being the ordinal number for 57.
being one of 57 equal parts.
a fifty-seventh part, esp. of one (1/57
the fifty-seventh member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.