WikiWord

tertiary

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/ˈtɜː.ʃi.ə.ɹiː/ English

Definitions

noun

  1. Any item considered to be of third order.
  2. A tertiary colour.
  3. Something from the Tertiary Period (the former term for the geologic period from 65 million to 2.58 million years ago).
  4. A tertiary feather; a tertial.

adjective

  1. Of third rank or order; subsequent.
  2. Possessing some quality in the third degree; especially having been subjected to the substitution of three atoms or radicals.“a tertiary alcohol, amine, or salt”
  3. Of quills: growing on the innermost joint of a bird's wing; tertial.

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