The meaning of TERTIARY is of third rank, importance, or value. How to use tertiary in a sentence.

Tertiary is another way of saying "third in importance," like socializing with co-workers being a tertiary reason for getting an after-school job — less important than, first, earning money and second, …

TERTIARY definition: 1. relating to a third level or stage 2. relating to education in colleges and universities: 3. A…. Learn more.

Define tertiary. tertiary synonyms, tertiary pronunciation, tertiary translation, English dictionary definition of tertiary. adj. 1. Third in place, order, degree, or rank.

Tertiary (from Latin, meaning 'third' or 'of the third degree/order..') may refer to: Tertiary period, an obsolete geologic period spanning from 66 to 2.6 million years ago

Tertiary means third in order, third in importance, or at a third stage of development. He must have come to know those philosophers through secondary or tertiary sources. ...the complementary tertiary …

third in order, rank or importance. Definition of tertiary adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms …

Jan 2, 2026 · Founded in 1284, Peterhouse is the oldest of the colleges of the University of Cambridge in Cambridge, UK. Universities provide tertiary education (sense 1), after primary and secondary …

Tertiary is a term often used to describe a third level, stage, or order of something. In geology, it refers to the third epoch of the Cenozoic Era, between the Cretaceous and Quaternary periods. In education, …

The Tertiary Period is characterized by the appearance of modern flora, insects, fish, amphibians, and reptiles, and by the dominance of mammals as vertebrate life forms on land.