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Definition of roundworm

roundworm

/ˈraʊndwɜːrm/
round · worm
Plural:roundworms
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roundworm Lexical Profile

roundworm Game Scores & Validity

• noun

1

A specific type of parasitic nematode that infects the intestinal tract of humans and other mammals.

Example

"The veterinarian prescribed a deworming medication after diagnosing the young puppy with a roundworm infection."

2

An invertebrate animal of the phylum Nematoda, characterized by a smooth, unsegmented, cylindrical body, living freely in soil or water, or parasitically in plants and animals.

Example

"The biology students examined a microscopic roundworm found in the soil sample."

Synonyms
View all synonyms for roundworm

• Nearby Words

rough scaled snake
roughy
round whitefish
roundworm
router
roux
rowan

Word Origin & Etymology

A compound of 'round' and 'worm', distinguishing these unsegmented, cylindrical nematodes from flatworms (Platyhelminthes) and segmented worms (Annelida).

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Roundworm. In Wordmom Dictionary. Retrieved Oct 19, 2026, from https://wordmom.com/dictionary/roundworm
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