The Collaborative International Dictionary of English v.0.48:

Clementine \Clem"ent*ine\, a.
   Of or pertaining to Clement, esp. to St. Clement of Rome and
   the spurious homilies attributed to him, or to Pope Clement
   V. and his compilations of canon law.
   [1913 Webster]

WordNet (r) 3.0 (2006):

clementine
    n 1: a variety of mandarin orange that is grown around the
         Mediterranean and in South Africa [syn: clementine,
         clementine tree]
    2: a mandarin orange of a deep reddish orange color and few
       seeds