Definition of Pterygota in English:

plural noun

• A large group of insects that comprises those that have wings or winged ancestors, including the majority of modern species.

  Subclass Pterygota, class Insecta (or Hexapoda): many orders

  ‘In most insects (the Pterygota) the thorax posses one or two pairs of wings for flying.’

  Compare with Apterygota

  ‘It is possible that Pterygota occurred as early as the Upper Devonian, but, again, there is no evidence for this.’