from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To determine or express the quantity of.
  • transitive v. Logic To limit the variables of (a proposition) by prefixing an operator such as all or some.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To assign a quantity to.
  • v. To determine the value of (a variable or expression).

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To modify or qualify with respect to quantity; to determine, fix or express the quantity of; to rate.
  • transitive v. To make explicit the quantity of.

from The Century Dictionary and Cyclopedia

  • To determine the quantity of; modify or determine with regard to quantity; mark with the sign of quantity: as, to quantify a syllable or a verse: more especially a term in logic.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. express as a number or measure or quantity
  • v. use as a quantifier


Medieval Latin quantificāre : Latin quantus, how great; see quantity + Latin -ficāre, -fy.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Medieval Latin quantificare (introduced by Sir William Hamilton in logic) (Wiktionary)


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