: a genus (subfamily Pyraustinae of the family Pyralidae or Crambidae) of inconspicuously colored moths with larvae that feed on foliage or bore in the stems of plants see corn borer

Word History


New Latin, from Greek pyraustēs moth that gets singed in fire, from pyr- + -austēs (from auein to get a light, start a fire)

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!

Dictionary Entries Near Pyrausta

Cite this Entry

“Pyrausta.” Dictionary, Merriam-Webster, Accessed 30 Sep. 2023.

Love words? Need even more definitions?

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