The Collaborative International Dictionary of English v.0.48:

Ovine \O"vine\ ([=o]"v[imac]n), a. [L. ovinus, fr. ovis sheep:
   cf. F. ovine.]
   Of or pertaining to sheep; consisting of sheep.
   [1913 Webster]

WordNet (r) 3.0 (2006):

ovine
    adj 1: of or pertaining to or of the nature of or characteristic
           of a sheep or sheep

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "ovine":
   asinine, bovid, bovine, caprid, caprine, cowish, cowlike, deerlike,
   equestrian, equine, goatish, goatlike, hircine, hoggish, hoofed,
   horsy, mulish, piggish, ruminant, sheepish, sheeplike, swinish,
   ungulate