plural of quarterite

(now rare) Concerning, with regard to, about, in respect to, as to, insofar as, inasmuch as, apropos. / (obsolete) In the opinion or judgment of.

(only in combination) Someone who has a specified intelligence quotient (IQ).

A difference between the value of a function evaluated at a number, and the value of the same function evaluated at a different number, a fixed distance from the first.