ascaris

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Definitions from WordNet

Noun ascaris has 1 sense

Ascaris, genus Ascaris - type genus of the family Ascaridae: roundworms with a three-lipped mouth
--₁ is a kind of worm genus
--₁ is a member of Ascaridae, family Ascaridae
--₁ has members: common roundworm, Ascaris lumbricoides

Definitions from the Web

Ascaris

Noun (Singular): Ascaris

Noun (Plural): Ascarids

Definition: 1. Any of a genus of parasitic worms, known as roundworms, which commonly infest the intestines of humans and animals. Ascarids can cause various diseases and health issues.
2. Specifically, Ascaris lumbricoides, a large roundworm infecting humans, causing a disease called ascariasis.

Examples:

The veterinarian successfully treated the dog's ascarid infestation.
Ascariasis, caused primarily by the roundworm Ascaris lumbricoides, affects millions of people worldwide.