The Collaborative International Dictionary of English v.0.48:

Collembola \Col*lem"bo*la\, n. pl. [NL., fr. Gr. ko`lla glue +
   'e`mbolon wedge, peg; -- so called from their having
   collophores.] (Zool.)
   The division of Thysanura which includes Podura, and allied
   forms.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Collembola
    n 1: minute wingless arthropods: springtails [syn: Collembola,
         order Collembola]