measuring worm definition

  • noun:
    • A geometrid caterpillar that moves in alternate contractions and expansions suggestive of calculating. Also referred to as inchworm, looper, spanworm.
    • The larva of a moth for the household Geometridae.
    • The larva of every geometrid moth; a looper: so called from the mode of development: just like geometer, 3. See cut under Cidaria.
    • small hairless caterpillar having legs on only its front side and rear segments; mainly larvae of moths of the household Geometridae
  • adjective:
    • the larva of every geometrid moth. These are typically so-called since they move by a procedure by which they initially pull a corner feet ahead toward their particular forward legs, developing a loop which resembles the process of measuring with a tape measure. The movement is completed by later moving the front legs forward to an enhanced position. See Geometrid.

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