Bible Dictionaries
Quaternary

Webster's Dictionary

(1):

(a.) Consisting of four; by fours, or in sets of four.

(2):

(n.) The Quaternary age, era, or formation. See the Chart of Geology.

(3):

(a.) Later than, or subsequent to, the Tertiary; Post-tertiary; as, the Quaternary age, or Age of man.

(4):

(n.) The number four.

Bibliography Information
Webster, Noah. Entry for 'Quaternary'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​q/quaternary.html. 1828.