oat nematode

noun

: an Old World plant-parasitic nematode (Heterodera major or Heterodera avenae) that is destructive to the roots of oats, barley, and several other cereals and that has become established in parts of Canada

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!