Dictionary entry

Geometrid (2)

Webster's Dictionary 1913

Ge‐om″e‐trid, n.(Zoöl.) 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.