Quaternary
Pronunciation: /ˈkwɑt.əɹˌnɛɹ.i/
The English word “Quaternary” has 1 meaning listed here.
proper noun
- The geological period of the Cenozoic Era immediately following the Tertiary. It is subdivided into the Pleistocene and the Holocene Epochs.
Etymology
From Latin quaternārius (“consisting of four”), from quaternī (“by fours”); in numerical sense via Middle English quaternary. Compare French quaternaire.
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More English words
- quaternarily
- quaternarist
- quaternarius
- quaternarization
- quaternary
- quaternary ammonium
- quaternary ammonium compound
- quaternary care
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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.