The Collaborative International Dictionary of English v.0.48:

Metabola \Me*tab"o*la\, Metabole \Me*tab"o*le\, n. [NL., from
   Gr. ? change; ? beyond + ? to throw.] (Med.)
   A change or mutation; a change of disease, symptoms, or
   treatment.
   [1913 Webster] Metabola

The Collaborative International Dictionary of English v.0.48:

Metabola \Me*tab"o*la\, Metabolia \Met`a*bo"li*a\, n. pl. [NL.
   See 1st Metabola.] (Zool.)
   A comprehensive group of insects, including those that
   undegro a metamorphosis.
   [1913 Webster]

WordNet (r) 3.0 (2006):

metabola
    n 1: insects that undergo complete metamorphosis [syn:
         holometabola, metabola]