Aves

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Definition
  1. Noun:
    • A taxonomic class of vertebrates: In biological classification, "Aves" is the scientific class that includes all living and extinct birds. Members of this class are characterized by feathers, beaks, wings, and the laying of hard-shelled eggs.
Usage
  • "Aves" is a formal, scientific term used primarily in zoology, ornithology, and taxonomy. It is not used in everyday conversation. When used, it typically refers to the entire class of birds as a group in an academic or technical context.
Examples
  • Noun:
    • The class Aves includes over 10,000 living species.
    • In the tree of life, Aves is a class within the phylum Chordata.
    • The fossil record provides evidence for the evolution of Aves from theropod dinosaurs.
Advanced Usage
  • "Aves" in Phylogenetics: Used to discuss the evolutionary relationships and cladistics of birds.
    • Recent studies have refined the phylogenetic placement of Aves within Dinosauria.
Variants and Related Words
  • Avian (adj): Of or relating to birds.
    • Avian influenza is a virus that affects birds.
  • Avifauna (n): The birds of a particular region, habitat, or geological period.
    • The island's avifauna is remarkably diverse.
Synonyms
  • Birds (n): The common term for creatures of the class Aves.
  • Class Aves (n): The full taxonomic designation.
Notes
  • "Aves" is always treated as a plural noun in a taxonomic sense (e.g., "Aves are...").
  • It is often italicized in scientific writing, as is customary for genus and species names, though class names are sometimes not.
Noun
  1. (ornithology) the class of birds

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