plural noun Te·neb·ri·on·i·dae

Definition of Tenebrionidae

  1. :  a large family of heteromerous firm-bodied mostly dark-colored vegetable-feeding beetles especially characteristic of arid regions and often with the hind wings vestigial and functionless and with larvae that are usually hard cylindrical worms — see darkling beetle, mealworm

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!

Origin and Etymology of tenebrionidae

New Latin, from Tenebrion-, Tenebrio, type genus (from Latin, one who shuns light, from tenebrae darkness) + -idae

Seen and Heard

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


feeling or affected by lethargy

Get Word of the Day daily email!