nem·a·tode | \ ˈne-mə-ˌtōd \

Definition of nematode 

: any of a phylum (Nematoda or Nemata) of elongated cylindrical worms parasitic in animals or plants or free-living in soil or water

called also roundworm

Examples of nematode in a Sentence

Recent Examples on the Web

Establish soil solarization treatments to control nematodes and diseases. Tom Maccubbin,, "May in the garden," 28 Apr. 2018 Soil from the landscape and top soils may contain insects, diseases, nematodes and weeds. Tom Maccubbin,, "Secrets to sunflower success," 2 June 2018 Another way to avoid nematodes is to grow figs in a container. Tom Maccubbin,, "It's easy to grow figs," 23 Mar. 2018 When it was tested on nematode worms infected with the bacteria, the researchers found the same results. Jason Daley, Smithsonian, "New “Immunobiotic” Could Treat Antibiotic-Resistant Superbugs," 6 July 2018 Thoroughly cover the area with the nematodes, then water them in. The Editors Of Organic Life, Good Housekeeping, "The 7 Best Organic Pest Control Techniques For Your Garden," 18 Dec. 2017 Once inside a pest, parasitic nematodes release bacteria that kills the insect host within a day or two. The Editors Of Organic Life, Good Housekeeping, "The 7 Best Organic Pest Control Techniques For Your Garden," 18 Dec. 2017 Check for mealybugs, billbugs and nematodes in zoysia lawns and treat as needed. 23. Tom Maccubbin,, "July in the garden," 30 June 2018 The National Parasite Collection, which includes millions of specimens of lice, mites, nematodes, protozoans, ticks and other critters, arrived from the Agriculture Department in 2014. Daniel Nasaw, WSJ, "Tight at the Museum: A Smithsonian Struggles to Find Space for the World’s Stuff," 7 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nematode.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of nematode

1865, in the meaning defined above

History and Etymology for nematode

ultimately from Greek nēmat-, nēma

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Last Updated

12 Sep 2018

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Time Traveler for nematode

The first known use of nematode was in 1865

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More Definitions for nematode


nem·a·tode | \ ˈnem-ə-ˌtōd \

Medical Definition of nematode 

(Entry 1 of 2)

: of or relating to the phylum Nematoda



Medical Definition of nematode (Entry 2 of 2)

: any worm of the phylum Nematoda

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Comments on nematode

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


to deposit or conceal in a hiding place

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