phylum Nematoda

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Definition

Proper noun * A major taxonomic rank in biology: "Phylum Nematoda" is the scientific name for a large phylum within the animal kingdom, comprising the roundworms. These are unsegmented worms with elongated, cylindrical bodies, often pointed at both ends.

Usage
  • "Phylum Nematoda" is used in formal, scientific contexts such as biology, zoology, and parasitology to classify and discuss this specific group of organisms.
  • It is typically treated as a singular proper noun.
Examples
Advanced Usage
  • The term is often used in contrast to other worm phyla, such as Platyhelminthes (flatworms) or Annelida (segmented worms).
  • In phylogenetic discussions, one might refer to "the position of Phylum Nematoda within the Ecdysozoa."
Variants and Related Words
  • Nematoda (n): The shorter, synonymous form of the phylum name, commonly used in scientific literature. (e.g., )
  • Nematode (n): The common name for any individual worm belonging to this phylum. (e.g., )
  • Roundworm (n): A general, non-scientific term for a nematode.
Synonyms
  • Roundworms (common name)
  • Threadworms (common name, often for specific small nematodes)
  • Eelworms (common name, often for plant-parasitic nematodes)
Related Phrases
  • Nematode infection: An infection caused by parasitic nematodes.
  • Nematode fauna: The community of nematode species present in a particular environment (e.g., soil nematode fauna).
Noun
  1. unsegmented worms: roundworms; threadworms; eelworms

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