1. relating to quantity: relating to, concerning, or based on the amount or number of something
2. measurable: capable of being measured or expressed in numerical terms
3. poetry based on length of syllables: relating or belonging to a system of poetic meter based on the length of syllables rather than on stress. Classical Latin and Greek verse uses a quantitative system.
[Late 16th century. < medieval Latin quantitativus< Latin quantit- (see quantity)]
