The Collaborative International Dictionary of English v.0.48:

Andrenidae \Andrenidae\ n.
   1. 1 a large family of solitary short-tongued bees most of
      which burrow in the ground.

   Syn: family Andrenidae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Andrenidae
    n 1: a large family of solitary short-tongued bees most of which
         burrow in the ground [syn: Andrenidae, family
         Andrenidae]