Definition of Psocoptera in US English:

Psocoptera

Entomology
  • An order of insects that comprises the booklice and other psocids.

    • ‘The hemipteroid assemblage has four orders of insects: Hemiptera (bugs, cicadas, whiteflies, aphids, etc.), Phthiraptera, Psocoptera (psocids, book lice, and bark lice), and Thysanoptera (thrips).’
    • ‘For the other two hemipteroid orders, Thysanoptera and Psocoptera, only partial mtDNA sequences are available.’
    • ‘The Hemiptera (bugs, cicadas, whiteflies, aphids, etc.), the Thysanoptera, the Psocoptera (psocids, book lice, and bark lice), and the Phthiraptera form the hemipteroid assemblage.’

Origin

Modern Latin (plural), from Psocus (genus name) + pteron ‘wing’.

Pronunciation

Psocoptera

/sōˈkäptərə/