acorn moth

noun

Definition of acorn moth

:a small, whitish-gray moth (Valentinia glandulella synonym Blastobasis glandulella of the family Blastobasidae) chiefly of the central and eastern United States with larvae that develop inside nuts and especially acorns
  • As the autumn wears on, increasing numbers of acorn moths … gain access to acorns on the ground through insect holes, cracks, and sprouts.
  • —Mark W. MoffettNational GeographicJune 1989
Note: The larvae of acorn moths frequently enter acorns through holes made by acorn weevils.

There's more!

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!
Already a subscriber? Log in.

First Known Use of acorn moth

circa 1871


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

to speak evil of

Get Word of the Day daily email!

Test Your Vocabulary

Forms of Government Quiz

  • knupfer-painting-solon-before-croesus
  • A gerontocracy is rule by:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

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!