spring cankerworm


Definition of spring cankerworm

: the variably colored looper larva of a widespread North American geometrid moth (Paleacrita vernata) that largely resembles the fall cankerworm but has spines on the abdomen and emerges in spring

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Learn More about spring cankerworm

Statistics for spring cankerworm

Cite this Entry

“Spring cankerworm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spring%20cankerworm. Accessed 27 Nov. 2020.

Comments on spring cankerworm

What made you want to look up spring cankerworm? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!