measuringworm

noun
UK /ˈmɛʒərɪŋwɜːm/
US /ˈmɛʒərɪŋwɜːrm/

A measuringworm is a small caterpillar that moves by looping its body up and down.

The measuringworm crawled slowly across the leaf, looping its body as it went.


OTHER MEANINGS

2. The larva of a geometer moth, known for its looping walk.

The measuringworm is the larva of a geometer moth.

3. A term used in some regions for any small looping caterpillar.

In the garden, we found a measuringworm on the rose bush.

4. A creature often used to teach children about how caterpillars move.

The teacher showed the class a measuringworm to explain its looping motion.