(grammar) A word, such as all or many, that expresses the quantity of a related noun.

present participle of quantify

(uncountable) The condition of being quantifiable / (countable) The degree to which something is quantifiable

to measure or say how much there is of something

Not quantified.

A movement to promote the constant tracking of one's physical activity, diet, and other personal metrics in order to gain insights for self-improvement; the practice itself.

plural of universal quantifier

A person who obsessively records most or all of their personal data (medical, monetary, occupational, sexual, artistic, etc.).

plural of self-quantifier

(logic) The operator, represented by the symbol ∃, used in predicate calculus to indicate that a predicate is true for at least one member of a specified set. Verbal equivalents include "there exists" and "there is".