The Collaborative International Dictionary of English v.0.48:

Seton \Se"ton\, n. [F. s['e]ton (cf. It. setone), from L. seta a
   thick, stiff hair, a bristle.] (Med. & Far.)
   A few silk threads or horsehairs, or a strip of linen or the
   like, introduced beneath the skin by a knife or needle, so as
   to form an issue; also, the issue so formed.
   [1913 Webster] Setose

WordNet (r) 3.0 (2006):

Seton
    n 1: United States religious leader who was the first person
         born in the United States to be canonized (1774-1821) [syn:
         Seton, Elizabeth Seton, Saint Elizabeth Ann Bayley
         Seton, Mother Seton]