A measure of the quality of an electric circuit; the ratio of the reactance to the resistance.

(in an electromagnetic coil) The ratio of the volume occupied by the wire in the winding, or the iron in the core, to the total volume of the winding or the core

(idiomatic) The emotional dimension of decision-making. A person's subjective (often almost visceral) feelings about what is right or wrong, good or bad.

(mathematics) The decomposition of a composite number into a product of smaller integers

(economics) A resource used to produce goods and services, such as labor, land, or capital.

(business, originally software engineering) A measurement of the risk of losing team members, in terms of information and abilities no longer available to the team.

plural of bus factor

(algebra, ring theory) For given ring R, any ideal I such that Q = R / I, the set of cosets of elements of I in R, is a ring (the quotient ring of I in R).

plural of factor ideal

(algebra, ring theory) A quotient ring.