Origin of factor

1400–50; late Middle English facto(u)r < Latin factor maker, perpetrator, equivalent to fac(ere) to make, do + -tor -tor

OTHER WORDS FROM factor

Definition for factor (2 of 3)

factor VIII

noun

Origin of factor VIII

First recorded in 1960–65

Definition for factor (3 of 3)

factor IX

noun

Example sentences from the Web for factor

British Dictionary definitions for factor (1 of 2)

factor
/ (ˈfæktə) /

noun

verb

(intr) to engage in the business of a factor
See also factor in

Derived forms of factor

factorable, adjective factorability, noun factorship, noun

Word Origin for factor

C15: from Latin: one who acts, from facere to do

usage for factor

Factor (sense 1) should only be used to refer to something which contributes to a result. It should not be used to refer to a part of something such as a plan or arrangement; instead a word such as component or element should be used

British Dictionary definitions for factor (2 of 2)

factor VIII

noun

a protein that participates in the clotting of blood. It is extracted from donated serum and used in the treatment of the commonest type of haemophilia, in which it is absent

Medical definitions for factor (1 of 3)

factor
[ făktər ]

n.

One that contributes in the cause of an action.
A mathematical component that by multiplication makes up a number or expression.
A gene.
A substance, such as a vitamin, that functions in a specific biochemical reaction or bodily process, such as blood coagulation.

Medical definitions for factor (2 of 3)

factor VIII

n.

A factor in the clotting of blood, a deficiency of which is associated with hemophilia A. antihemophilic factor antihemophilic globulin antihemophilic globulin A proserum prothrombin conversion accelerator

Medical definitions for factor (3 of 3)

factor IX

n.

A factor in the clotting of blood necessary for the formation of intrinsic blood thromboplastin; a deficiency of it causes hemophilia B. antihemophilic globulin B Christmas factor

Scientific definitions for factor

factor
[ făktər ]

Noun

One of two or more numbers or expressions that are multiplied to obtain a given product. For example, 2 and 3 are factors of 6, and a + b and a - b are factors of a2 - b2.
A substance found in the body, such as a protein, that is essential to a biological process. For example, growth factors are needed for proper cell growth and development.

Verb

To find the factors of a number or expression. For example, the number 12 can be factored into 2 and 6, or 3 and 4, or 1 and 12.