ProturaPronunciation: /prə(ʊ)ˈtjʊərə/Definition of Protura noun 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) Derivatives proturan noun & adjective Origin:modern Latin (plural), from Greek prōtos 'first, primitive'Protura in other Oxford dictionaries Definition of Protura in the US English dictionary