Annelida
/ə'nelidə/
Definition
- Noun:
- A major taxonomic class or phylum of segmented worms: "Annelida" refers to a large group of invertebrate animals characterized by their elongated, segmented bodies. This group includes familiar organisms such as earthworms, lugworms, and leeches.
Usage Examples
- Noun:
- The phylum Annelida includes over 22,000 species.
- Earthworms, which belong to the Annelida, are vital for soil health.
- The biologist studied the anatomy of various Annelida.
Advanced Usage
- In taxonomic context: Used formally in biological classification to denote the phylum.
- The specimen was definitively classified under Annelida based on its metameric segmentation.
Variants and Related Words
- Annelid (n): An individual worm belonging to the phylum Annelida.
- The beachcomber found a polychaete annelid in the sand.
- Annelidan (adj): Of or relating to the annelids.
- The annelidan circulatory system is closed.
Synonyms
- Segmented worms: A descriptive synonym for the group.
- Ringed worms: Another common name referring to their body segmentation.
Related Phrases
- Phylum Annelida: The full taxonomic designation.
- The course covered the key characteristics of Phylum Annelida.
Noun
-
segmented worms: earthworms; lugworms; leeches
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