One of the mysteries of the English language finally explained.
Any scale insect of the family Margarodidae, some of which form pearl-like subterranean cysts on the roots of plants and can be a pest of grapevines.
Of, relating to, or designating scale insects of the family Margarodidae.
1940s. From scientific Latin Margarodidae, family name from scientific Latin Margarodes, genus name + -idae.
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