hemlock woolly adelgid

noun

Definition of hemlock woolly adelgid

: a woolly adelgid (Adelges tsugae) of Formosa, Japan, and the northwestern U.S. that has been introduced into the eastern U.S. where it is a serious pest of the eastern hemlock — see woolly adelgid

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 hemlock woolly adelgid

Share hemlock woolly adelgid

Resources for hemlock woolly adelgid

Statistics for hemlock woolly adelgid

Look-up Popularity

Comments on hemlock woolly adelgid

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

WORD OF THE DAY

the way words of a language are spelled

Get Word of the Day daily email!

Test Your Vocabulary

A Green Quiz

  • shamrock
  • What is the best definition of green-eyed monster?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ

Love words? Need even more definitions?

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