资料来源 : Webster's Revised Unabridged Dictionary (1913)

Phoca \Pho"ca\, n. [L., a seal, fr. Gr. ?.] (Zo["o]l.)
   A genus of seals. It includes the common harbor seal and
   allied species. See {Seal}.

资料来源 : WordNet®

Phoca
     n : type genus of the Phocidae: earless seals [syn: {genus Phoca}]