- quarterEach of four equal parts into which something can be divided; a fourth part.
- quartariusA Roman unit of liquid measure reckoned as the volume of ⁵⁄₁₂ Roman pound of wine and equivalent to about 0.14 L although varying slightly over time.
- quartarySynonym of quartarius, quarter-sextarius, a Roman unit of liquid measure equivalent to about 0.14 L