- a group of insects that includes the bristletails and springtails. They have a primitive body form that lacks wings and typically have no distinct larval stage. Compare with Pterygota.
- Subclass Apterygota, class Insecta (or Hexapoda): several orders, some of which are sometimes not included with the Insecta
modern Latin Apterygota, from Greek a- 'not' + pterugōtos 'winged'