- 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)
Origin of vector
Related Words for vectorbearing, direction, angle, point, track, trajectory, route, aim, course, way, line
Examples from the Web for vector
Contemporary Examples of vector
The adenovirus he received was simply a vector, bringing a missing gene to his cell.Ebola Vaccine Will Do Little for Current Crisis
August 28, 2014
To early adopters, Homestar Runner was that light, in vector graphics with actionscript.Homestar Runner, Trogdor the Burninator, and the Birth of the Internet
April 22, 2014
Or, as Sims finely puts it, the zombie will be found “moving blindly along a vector of memory.”Zombies, Zombies, Everywhere: What’s a Novelist to Do?
June 21, 2013
The vector that they were pointing at was true, but it doesn't mean that Israel is 'partly free.'Is The Israeli Press Only "Partly Free"?
May 10, 2013
The other source of vector is the reaction between the zirconium and water.Japan Nuclear Crisis: What Is a Full Meltdown?
March 15, 2011
Historical Examples of vector
I am assigned to duty with the 334th Vector, which is operating in Sector Nine.Indirection
Everett B. Cole
Another species is supposed to be the vector of Peruvian verruga.Handbook of Medical Entomology
William Albert Riley
Each vector shown is the vector resultant for one particular night.A Quantitative Study of the Nocturnal Migration of Birds.
George H. Lowery.
You disappeared two centuries ago when the vector field collapsed.Forsyte's Retreat
The position of the particle with respect to the origin is determined by the magnitude and direction of this 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.