can·ker·worm /ˈkæŋkɚ/
 尺蠖


 Can·ker·worm n. Zool. The larva of two species of geometrid moths which are very injurious to fruit and shade trees by eating, and often entirely destroying, the foliage. Other similar larvæ are also called cankerworms.
 Note: ☞ The autumnal species (Anisopteryx pometaria) becomes adult late in autumn (after frosts) and in winter.  The spring species (Anisopteryx vernata) remains in the ground through the winter, and matures in early spring.  Both have winged males and wingless females. The larvæ are similar in appearance and habits, and belong to the family of measuring worms or spanworms. These larvæ hatch from the eggs when the leaves begin to expand in spring.

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 cankerworm
      n : green caterpillar of a geometrid moth; pest of various fruit
          and shade trees


 Cankerworm
    (Heb. yelek), "the licking locust," which licks up the grass of
    the field; probably the locust at a certain stage of its growth,
    just as it emerges from the caterpillar state (Joel 1:4; 2:25).
    The word is rendered "caterpillar" in Ps. 105:34; Jer. 51:14, 17
    (but R.V. "canker-worm"). "It spoileth and fleeth away" (Nah.
    3:16), or as some read the passage, "The cankerworm putteth off
    [i.e., the envelope of its wings], and fleeth away."