Synonyms for Tertiary:

n.

bloated, accredited, brick-and-mortar, business-to-business, business, collective, big, brisk, all-night, anticompetitive. collegiate, adult education, Continuing Education, Distance Learning, extracurricular, extramural, coeducation, comprehensive, higher education, intercollegiate. collateral, subordinate, secondary, subsidiary, lesser, incidental, second, in descending order, ancillary. eleventh, billionth, fourth, hundredth, fifth, fiftieth, eighth, fifteenth, fortieth, fourteenth. tertiary (noun)
tertiary period, 3rd, third, ordinal.
time (noun)
tertiary period.

Other synonyms:

Tertiary period
tertiary period.
Other relevant words:
business, big, eighth, coeducation, lesser, ancillary, intercollegiate, subordinate, brisk, collegiate, incidental, extramural, collateral, accredited, fifth, fortieth, billionth, comprehensive, fourteenth, fiftieth, third, business-to-business, subsidiary, eleventh, collective, fifteenth, second, anticompetitive, fourth, all-night, extracurricular, bloated, brick-and-mortar, secondary, hundredth.

Usage examples for tertiary

  1. Nor, again, can any such reply be made to the fact that there are far more numerous orders and genera of mammalian remains in the tertiary formations than in the secondary formations. – Essays: Scientific, Political, & Speculative, Vol. I by Herbert Spencer
  2. No species of this genus is known to have existed during the Tertiary era, and no living species has as yet been made known. – Louis Agassiz: His Life and Correspondence by Louis Agassiz
  3. The strata of the Bad Lands contain vast numbers of the remains of the animals of Tertiary times, and the large amount of barren surface exposed to view makes search for fossils easy and fruitful. – The Elements of Geology by William Harmon Norton