1

quaternary

adjective qua·ter·na·ry \ ˈkwä-tər-ˌner-ē , ˈkwä-tə- , kwə-ˈtər-nə-rē \

Definition of quaternary

1 a : of, relating to, or consisting of four units or members
b : of, relating to, or being a number system with a base of four
2 capitalized : of, relating to, or being the geological period from the end of the Tertiary to the present time or the corresponding system of rocks — see Geologic Time Table
3 : consisting of, containing, or being an atom bonded to four other atoms

Recent Examples of quaternary from the Web

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Origin and Etymology of quaternary

Latin quaternarius, from quaterni four each


2

quaternary

noun

Definition of quaternary

plural quaternaries
1 capitalized : the Quaternary period or system of rocks
2 : a member of a group fourth in order or rank

Recent Examples of quaternary from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quaternary.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of quaternary

1880


Medical Dictionary

1

quaternary

adjective qua·ter·na·ry \ ˈkwät-ə(r)-ˌner-ē , kwə-ˈtər-nə-rē \

medical Definition of quaternary

: consisting of, containing, or being an atom bonded to four other atoms

2

quaternary

noun

medical Definition of quaternary

plural quaternaries

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