The Collaborative International Dictionary of English v.0.48:

Certhiidae \Certhiidae\ n.
   a natural family of birds cosisting of several species of
   creepers, such as Certhia americana, the tree creeper.

   Syn: family Certhiidae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Certhiidae
    n 1: creepers [syn: Certhiidae, family Certhiidae]