noun. green caterpillar of a geometrid moth; pest of various fruit and shade trees.
- family Geometridae
- fall cankerworm
- spring cankerworm
- canker (English)
- canker (Middle English (1100-1500))
- worm (English)
- worm (Middle English (1100-1500))
Example sentences of the word cankerworm
1. Noun, singular or mass
The spring cankerworm has a segmented body that is white on top and orange on its underside.