• (RP) IPA: /ˈtɜː.ʃi.ə.ɹiː/
  • (GA) IPA: /ˈtɝ.ʃi.æ.ɹi/, /ˈtɝ.ʃə.ɹi/

tertiary (not comparable)

  1. Of third rank#Noun|rank or order#Noun|order; subsequent.
    • 1831, [Mary Shelley], chapter 2, in Frankenstein; or, The Modern Prometheus (Standard Novels; no. 9), rev. and corr. edition, London: Henry Colburn and Richard Bentley, New Burlington Street; Edinburgh: Bell and Bradfute; Dublin: Cumming, OCLC 858441409; republished as Mary Shelley, Frankenstein, New York, N.Y.: Bantam Books, November 1991, ISBN 978-0-553-21044-6, page 25 ↗:
      An untaught peasant beheld the elements around him and was acquainted with their practical uses. The most learned philosopher knew little more. He had partially unveiled the face of Nature, but her immortal lineaments were still a wonder and a mystery. He might dissect, anatomize, and give names; but, not to speak of a final cause, causes in their secondary and tertiary grades were utterly unknown to him.
  2. (chemistry) 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. (ornithology) Of quills: growing on the innermost joint#Noun|joint of a bird's wing; tertial.
Translations Noun

tertiary (plural tertiaries)

  1. Any item considered to be of third order.
  2. A tertiary colour.
  3. (geology) Something from the Tertiary Period (the former term for the geologic period from 65 million to 2.58 million years ago).
  4. (ornithology) A tertiary feather; a tertial#Noun|tertial.
  5. (Roman Catholicism) A member of a Roman Catholic third order; a layperson who participates in activities similar to those engaged in by man#Noun|men and women who take religious vow#Noun|vows (respectively the first and second orders), and who may wear#Verb|wear some elements of an order#Noun|order's habit such as a scapular.
    • 2008, Tamar Herzig, “The Power of Visions: Lucia Brocadelli and Osanna Andreasi”, in Savonarola’s Women: Visions and Reform in Renaissance Italy, Chicago, Ill.; London: University of Chicago Press, ISBN 978-0-226-32915-4; large print edition, Richmond, B.C.: ReadHowYouWant.com Ltd., 2010, ISBN 978-1-4596-0628-9, page 146 ↗:
      Immediately after her arrival in Ferrara, while she was still striving to secure the foundation of her exemplary reformed community of Dominican tertiaries, [Lucia] Brocadelli also renewed her attempts to enhance [Girolamo] Savonarola's saintly reputation.
Translations Translations

tertiary (not comparable)

  1. (geology) Of or pertaining to the first part of the Cenozoic era when modern flora and mammals appeared.
Translations Proper noun
  1. (geology) The first part of the Cenozoic era when modern flora and mammals appeared.

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