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armored scale

American  

noun

  1. any of numerous insects constituting the family Diaspididae, the largest group of scale insects, which includes many important pests of various trees and shrubs, as the San Jose scale.

Etymology

Origin of armored scale

First recorded in 1900–05

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.