meaning of quaternary
1. Consisting of four; by fours, or in sets of four.
2. Later than, or subsequent to, the Tertiary; Post-tertiary; as, the Quaternary age, or Age of man.
3. The number four.
4. The Quaternary age, era, or formation. See the Chart of Geology.
5. the cardinal number that is the sum of three and one
Related Words
quaternary | quaternary ammonium compound | quaternary period |
