geometrid

Ge*om"e*trid, a. (Zoöl.) Defn: Pertaining or belonging to the Geometridæ. Ge*om"e*trid, n. (Zoöl.) Defn: One of numerous genera and species of moths, of the family Geometridæ; -- so called because their larvæ (called loopers, measuring worms, spanworms, and inchworms) creep in a looping manner, as if measuring. Many of the species are injurious to agriculture, as the cankerworms.

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