Am`e·tab'o·la noun plural [ New Latin ] (Zoology) A group of insects which do not undergo any metamorphosis. [ Written also Ametabolia .] Found on http://www.encyclo.co.uk/webster/A/69
Ametabola are a division of insects which are wingless and do not undergo any metamorphosis, but which hatch from the egg nearly in the same form they keep throughout their life. This includes the lice and spring-tails. Found on http://www.probertencyclopaedia.com/browse/BA.HTM