quaternary
2quaternary
noun plural quaternaries
Definition of QUATERNARY
1
capitalized : the Quaternary period or system of rocks
2
: a member of a group fourth in order or rank
First Known Use of QUATERNARY
1880
Other Geology Terms
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Previous Word in the Dictionary: quatercentenary
All Words Near: quaternary
Previous Word in the Dictionary: quatercentenary
All Words Near: quaternary
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