Definition of Protura in US English:

Protura

Entomology
  • An order of minute white wingless insects with slender bodies. They lack eyes and antennae, using the first pair of legs as sensory organs.

    Order Protura, subclass Apterygota, class Insecta (or Hexapoda)

    • ‘There are huge gaps in the early fossil record, since several basal hexapod groups have not been found at all in the Paleozoic: Protura, Diplura, and Thysanura.’
    • ‘Hexapoda (Insecta sensu lato) includes four groups: Protura, Collembola, Diplura, and Insecta sensu stricto (with the latter containing Microcoryphia or Archeognatha, Zygentoma, and the pterygote insects).’

Origin

Modern Latin (plural), from Greek prōtos ‘first, primitive’.

Pronunciation

Protura

/prəˈt(y)o͞orə/