01 n. The larva of any geometrid moth. It progresses forward by first bringing the rear end of the body forward, forming a loop, then moving the …
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The larva of any geometrid moth. It progresses forward by first bringing the rear end of the body forward, forming a loop, then moving the front part of the body; called also measuring worm, measuringworm, spanner, and looper. See Geometrid.(Zool.) Also: measuring, measuringworm, spanner, looper See: Geometrid