/kwon"ti tee/ , n. , pl. quantities .
1. a particular or indefinite amount of anything: a small quantity of milk; the ocean's vast quantity of fish.
2. an exact or specified amount or measure: Mix the ingredients in the quantities called for.
3. a considerable or great amount: to extract ore in quantity.
4. Math.
a. the property of magnitude involving comparability with other magnitudes.
b. something having magnitude, or size, extent, amount, or the like.
c. magnitude, size, volume, area, or length.
5. Music. the length or duration of a note.
6. Logic. the character of a proposition as singular, universal, particular, or mixed, according to the presence or absence of certain kinds of quantifiers.
7. that amount, degree, etc., in terms of which another is greater or lesser.
8. Pros. , Phonet. the relative duration or length of a sound or a syllable, with respect to the time spent in pronouncing it; length.
9. Law. the nature of an estate as affected by its duration in time.
[ 1250-1300; ME quantite quantitas, equiv. to quant ( us ) how much + -itas -ITY ]