from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various moths of the family Geometridae, having caterpillars commonly known as measuring worms that move by looping the body in alternate contractions and expansions.
  • adj. Of or belonging to the Geometridae.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of the various moths of the family Geometridae.
  • n. A larva of such moth, which when walking alternate legs and prolegs, giving the appearance of measuring.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Pertaining or belonging to the Geometridæ.
  • n. 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.

from The Century Dictionary and Cyclopedia

  • In entomology, pertaining to the moths of the section Geometrina, whose larvæ are measuring-worms.
  • n. A moth of the family Geometridœ or section Geometrina, or its larva; a measuring-worm.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. slender-bodied broad-winged moth whose larvae are called measuring worms


from The American Heritage® Dictionary of the English Language, 4th Edition

From New Latin Geōmetridae, family name, from Latin geōmetrēs, geometrician, land-measurer, from Greek, from geōmetrein, to measure land; see geometry.



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