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  1. scale insect

    • noun

      a small bug with a protective shieldlike scale. It spends most of its life attached by its mouth to a single plant, sometimes occurring in such large numbers that it becomes a serious pest.
    • noun

      a long, slender, slow-moving insect that resembles a twig. Many species appear to lack males and the females lay fertile eggs without mating.
    • noun

      a substance sprayed from an aerosol that kills insects:
    • noun

      an Asian scale insect which lives on croton trees and produces secretions that are used in the production of shellac.
    • noun

      a small red mark caused by the bite of an insect:
    • noun

      a very long, slender European water bug related to the water scorpion, which waits motionless in vegetation for prey to pass.
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