The Collaborative International Dictionary of English v.0.48:

Ciconiidae \Ciconiidae\ n.
   a natural family of birds comprising the storks.

   Syn: family Ciconiidae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Ciconiidae
    n 1: storks [syn: Ciconiidae, family Ciconiidae]