Definition of looper in English:



  • 1A caterpillar of a geometrid moth, which moves forward by arching itself into loops.

    Also called measuring worm or (North American) inchworm
    • ‘In April, the researchers began field testing another lure formulation that attracts alfalfa loopers, cabbage loopers, and corn earworms.’
    • ‘Aphids, cabbage loopers, flea beetles, leafhoppers and leaf miners are some of the insects that attack lettuce, but slug are the most notorious for loving lettuce.’
    • ‘They are economical to raise, however, and mass releases can be very effective against corn earworm, cabbageworms, loopers, hornworms, codling moth and other leaf-eating caterpillars.’
    • ‘Some of these wasps are small enough to attack aphids or whiteflies, while others parasitize larger prey such as cabbage loopers, cutworms, and tomato hornworms.’
    • ‘The newly seeded alfalfa has plant bugs and potato leafhoppers and established alfalfa has army worms, alfalfa loopers, thistle caterpillars, and variegated cut worms.’
  • 2A device for making loops.

    • ‘Use decorative thread in the upper looper and adjust the machine for a short, rolled-edge stitch.’
    • ‘For even more stretch, use textured-nylon or polyester thread in the needle and loopers.’
    • ‘Follow the threading order as described in the manual, which is usually loopers and then the needle (s).’
    • ‘There was no time to wonder at the marvels of engineering that kept loopers, needles and blades dancing without a misstep even as the speed hit maximum.’
    • ‘Using a 4-thread, medium-length balanced stitch and serger thread in the needle and loopers, serge the front to back at both shoulders.’