Definitions

from The Century Dictionary.

  • noun A genus of homopterous insects, typical of the family Psyllidæ, having a pointed, bent front, highly arched scutum, and strongly developed scutellum, the body smooth, naked, or finely pilose, and the extreme tip of the wing falling between the radius and the fourth vein.
  • noun [lowercase] An insect of this genus.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Zoöl.) Any leaping plant louse of the genus Psylla, or family Psyllidæ.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun zoology Any leaping plant louse of the genus Psylla, or family Psyllidae.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From the genus name.

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