- a quantity possessing both magnitude and direction, represented by an arrow the direction of which indicates the direction of the quantity and the length of which is proportional to the magnitude.Compare scalar(def 4).
- such a quantity with the additional requirement that such quantities obey the parallelogram law of addition.
- such a quantity with the additional requirement that such quantities are to transform in a particular way under changes of the coordinate system.
- any generalization of the above quantities.
- an insect or other organism that transmits a pathogenic fungus, virus, bacterium, etc.
- any agent that acts as a carrier or transporter, as a virus or plasmid that conveys a genetically engineered DNA segment into a host cell.
verb (used with object)
- veblen, thorstein,
- vector addition,
- vector analysis,
- vector boson,
- vector field,
- vector font
Origin of vector
Word Origin for vector
"quantity having magnitude and direction," 1704, from Latin vector "one who carries or conveys, carrier," from past participle stem of vehere "carry, convey" (see vehicle).
In physics and mathematics, any quantity with both a magnitude and a direction. For example, velocity is a vector because it describes both how fast something is moving and in what direction it is moving. Because velocity is a vector, other quantities in which velocity is a factor, such as acceleration and momentum, are vectors also.