Wordnet 3.0
NOUN (1)
1. 
 a woman who is the senior member of a group; 
The Collaborative International Dictionary of English v.0.48:
doyenne \doy`enne"\ n. f.
   a female doyen.
   [PJC]
WordNet (r) 3.0 (2006):
doyenne
    n 1: a woman who is the senior member of a group