Tertiary period

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• Tertiary period — Tertiary Ter ti*a*ry, a. [L. tertiarius containing a third part, fr. tertius third: cf. F. tertiaire. See {Tierce}.] 1. Being of the third formation, order, or rank; third; as, a tertiary use of a word. Trench. [1913 Webster] 2. (Chem.)… …   The Collaborative International Dictionary of English

• Tertiary Period — Interval of geologic time, 65–1. 8 million years ago. It constitutes the first of the two periods of the Cenozoic Era, the second being the Quaternary. The Tertiary has five subdivisions: (from oldest to youngest) the Paleocene, Eocene, Oligocene …   Universalium

• Tertiary period — noun from 63 million to 2 million years ago • Syn: ↑Tertiary • Instance Hypernyms: ↑period, ↑geological period • Part Holonyms: ↑Cenozoic, ↑Cenozoic era, ↑Age of Mammals …   Useful english dictionary

• Tertiary — Ter ti*a*ry, a. [L. tertiarius containing a third part, fr. tertius third: cf. F. tertiaire. See {Tierce}.] 1. Being of the third formation, order, or rank; third; as, a tertiary use of a word. Trench. [1913 Webster] 2. (Chem.) Possessing some… …   The Collaborative International Dictionary of English

• Tertiary age — Tertiary Ter ti*a*ry, a. [L. tertiarius containing a third part, fr. tertius third: cf. F. tertiaire. See {Tierce}.] 1. Being of the third formation, order, or rank; third; as, a tertiary use of a word. Trench. [1913 Webster] 2. (Chem.)… …   The Collaborative International Dictionary of English

• Tertiary color — Tertiary Ter ti*a*ry, a. [L. tertiarius containing a third part, fr. tertius third: cf. F. tertiaire. See {Tierce}.] 1. Being of the third formation, order, or rank; third; as, a tertiary use of a word. Trench. [1913 Webster] 2. (Chem.)… …   The Collaborative International Dictionary of English

• Tertiary formation — Tertiary Ter ti*a*ry, a. [L. tertiarius containing a third part, fr. tertius third: cf. F. tertiaire. See {Tierce}.] 1. Being of the third formation, order, or rank; third; as, a tertiary use of a word. Trench. [1913 Webster] 2. (Chem.)… …   The Collaborative International Dictionary of English

• Tertiary syphilis — Tertiary Ter ti*a*ry, a. [L. tertiarius containing a third part, fr. tertius third: cf. F. tertiaire. See {Tierce}.] 1. Being of the third formation, order, or rank; third; as, a tertiary use of a word. Trench. [1913 Webster] 2. (Chem.)… …   The Collaborative International Dictionary of English

• Tertiary (disambiguation) — Tertiary (from Latin tertiarius ) is an adjective meaning third or third hand . It may refer to:* The Tertiary period of the geologic time scale. * Tertiaries, members of a Third order (lay folk connected with a Mendicant Order). * Ternary… …   Wikipedia

• tertiary — [tʉr′shē er΄ē, tʉr′shə rē] adj. [L tertiarius < tertius,THIRD] 1. of the third rank, order, formation, stage, etc.; third 2. Chem. a) third in order or type; involving the substitution of three atoms or radicals b) characterized by or… …   English World dictionary

• Period — Pe ri*od, n. [L. periodus, Gr. ? a going round, a way round, a circumference, a period of time; ? round, about + ? a way: cf. F. p[ e]riode.] 1. A portion of time as limited and determined by some recurring phenomenon, as by the completion of a… …   The Collaborative International Dictionary of English