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measuring worm

- 2 dictionary results

meas⋅ur⋅ing⋅worm

[mezh-er-ing-wurm]
–noun
the larva of any geometrid moth, which progresses by bringing the rear end of the body forward and then advancing the front end.
Also, measuring worm.
Also called inchworm, looper, spanworm.


Origin:
1835–45, Americanism; measuring + worm
meas·ur·ing worm   (mězh'ə-rĭng)
n.  A geometrid caterpillar that moves in alternate contractions and expansions suggestive of measuring. Also called inchworm, looper, spanworm.
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