: a genus (the type of the family Heteroderidae of the superfamily Tylenchoidea) of minute nematode worms many of which attack the roots and underground stems of various cultivated plants (as sugar beets, potatoes, peas) compare golden nematode, root-knot nematode

Word History


New Latin, from heter- + -dera (from Greek derē neck)

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 Heterodera

Cite this Entry

“Heterodera.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Heterodera. Accessed 26 May. 2024.

Love words? Need even more definitions?

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