/ Dictionary / Index N nematode: Meaning and Definition of Find definitions for: nem•a•tode Pronunciation: (nem'u-tōd"), [key] — n. any unsegmented worm of the phylum Nematoda, having an elongated, cylindrical body; a roundworm. —adj. pertaining to the Nematoda. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nematode (Thesaurus) nematocyst nematology Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language