family Apterygidae

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Definition

Noun 1. A taxonomic family of flightless birds: The family Apterygidae is a biological classification that is coextensive with the order Apterygiformes. It contains the living species of kiwis.

Usage Notes
  • This is a highly specific scientific term used in zoology and biological taxonomy.
  • It is always treated as a singular noun (e.g., ).
  • In formal writing, the family name is often italicized.
Examples
  • The family Apterygidae is endemic to New Zealand.
  • All extant members of the family Apterygidae are nocturnal.
  • The kiwi bird belongs to the family Apterygidae.
Advanced Usage
  • In taxonomic hierarchy, Apterygidae sits below the order Apterygiformes and above the genus .
  • The term can be used in discussions of evolutionary biology, as in: "The family Apterygidae represents a distinct lineage of paleognathous birds."
Variants and Related Words
  • Apterygiformes (n): The order to which this family belongs.
  • Apteryx (n): The only genus within the family Apterygidae, comprising the kiwi species.
  • Kiwi (n): The common name for any bird within the family Apterygidae.
Synonyms
  • Kiwi family (common, non-scientific term)
Notes on Different Meanings
  • This term has only one specific meaning in modern English: the scientific classification for kiwis. It is not used in general or figurative contexts.
Noun
  1. coextensive with the order Apterygiformes

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