資料來源 : Webster's Revised Unabridged Dictionary (1913)

Canis \Ca"nis\ (k[a^]"n[i^]s), n.; pl. {Canes} (-n[=e]z). [L., a
   dog.] (Zo["o]l.)
   A genus of carnivorous mammals, of the family {Canid[ae]},
   including the dogs and wolves.

   {Canis major} [L., larger dog], a constellation to the
      southeast of Orion, containing Sirius or the Dog Star.

   {Canis minor} [L., smaller dog], a constellation to the east
      of Orion, containing Procyon, a star of the first
      magnitude.

資料來源 : WordNet®

Canis Major
     n : a constellation southeast of Orion; contains Sirius [syn: {Great
         Dog}]