Ascaris
Definition
Noun 1. A genus of parasitic roundworms: Ascaris is the scientific name for a genus of large intestinal nematodes (roundworms). These parasites are characterized by having a mouth with three distinct lips. 2. (Informally) The parasite itself: The term is often used to refer to the parasitic worm Ascaris lumbricoides, which infects the human intestine.
Usage and Examples
- Scientific Classification: "The genus includes species that parasitize mammals."
- Medical Context: "Infection with is one of the most common helminthiases worldwide."
- Identifying Feature: "Under the microscope, you can identify by its three-lipped mouth."
Advanced Usage
- In Taxonomic Phrases: The name is often used in binomial nomenclature (e.g., , ) to specify the species within the genus.
- In Compound Adjectives: Used in technical terms like "ascariasis" (the disease caused by infection) or "ascarid" (a general term for worms of the superfamily Ascaridoidea).
Variants and Related Words
- Ascariasis (n): The disease or medical condition resulting from an infection with worms.
- Symptoms of ascariasis can include abdominal pain and intestinal blockage.
- Ascarid (n): A member of the superfamily Ascaridoidea, which includes the genus and related roundworms.
- Roundworm (n): A common name for nematodes, including .
Synonyms
- Roundworm (common name, less specific)
- Nematode (scientific name for the phylum, much broader)
Notes on Meaning
- The primary meaning is taxonomic, referring to a specific genus. In non-scientific contexts, it is almost exclusively used to refer to the human parasite . It is not typically used in idioms or phrasal verbs.
Noun
-
type genus of the family Ascaridae: roundworms with a three-lipped mouth
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