Organisms

Annelida

A phylum of metazoan invertebrates comprising the segmented worms, and including marine annelids (POLYCHAETA), freshwater annelids, earthworms (OLIGOCHAETA), and LEECHES. Only the leeches are of medical interest. (Dorland, 27th ed)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A phylum of metazoan invertebrates comprising the segmented worms, and including marine annelids (POLYCHAETA), freshwater annelids, earthworms (OLIGOCHAETA), and LEECHES. Only the leeches are of medical interest. (Dorland, 27th ed)

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

5 entry terms
  • Segmented Worms
  • Worms, Segmented
  • Annelidas
  • Segmented Worm
  • Worm, Segmented

MeSH Record

Aspects Covered

18 allowable subheadings

Indexed with the subheadings anatomy & histology, chemistry, classification, cytology, drug effects, embryology, enzymology, genetics, growth & development, immunology, metabolism, microbiology, parasitology, pathogenicity, physiology, radiation effects, ultrastructure, virology.

MeSH Record

Indexing Annotation

general or unspecified; prefer specifics

MeSH Hierarchy

Tree Number

  1. B01w.050w.500w.091w

AMA Style

References

  1. National Library of Medicine. Annelida. Medical Subject Headings (MeSH). 2026. Unique ID D000845. http://id.nlm.nih.gov/mesh/2026/D000845
  2. Annelida. In: Wikipedia. https://en.wikipedia.org/wiki/Annelid
  3. Annelida. In: Wikidata. https://www.wikidata.org/wiki/Q25522