Definition of "nematodes" []

• Plural form of nematode. (noun)

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• "In India, where marigolds are traditionally planted among other crops, African marigolds (Tagetes erecta) intercropped with tomatoes or okra, were found to be effective for reducing six kinds of nematodes including the root knot nematode, and for increasing the quality and quantity of crop yields. 57 There appear to be several ways in which marigolds affect nematodes: substances exuded from marigold roots are nematocidal, the nematodes’ life cycle is interrupted because nematode larvae have difficulty penetrating marigold roots, and nematodes are unable to develop once inside the roots."
• "His response was "As far as I know, all attempts to show learning in nematodes have failed," but that I was free to choose my research project when I arrived."
• "He had set out a few years before in search of new varieties of minuscule but ubiquitous and extraordinarily hardy roundworms—which aren’t really worms at all but rather are called nematodes."