birch leaf miner

noun

Definition of birch leaf miner

  1. :  a small black sawfly (Fenusa pusilla) native to Europe but now established in much of eastern North America with a larva that mines in the leaves of various birches often causing serious defoliation

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Seen and Heard

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

WORD OF THE DAY

capable of being understood in two ways

Get Word of the Day daily email!