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WordReference Random House Learner's Dictionary of American English © 2024vec•tor /ˈvɛktɚ/USA pronunciation n. [countable]- Mathematics
- a quantity that has both magnitude and direction, as force or velocity.
- the direction or course followed by something, as by an airplane.
- Immunologysomething or someone, as a person or an insect, that carries and transmits a disease-causing organism.
v. [~ + object] - Aeronauticsto guide (an aircraft) in flight by radioing necessary or proper directions.
See -vec-. WordReference Random House Unabridged Dictionary of American English © 2024vec•tor (vek′tər),USA pronunciation n. - Mathematics
- 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. Cf. scalar (def. 4).
- Mathematicssuch a quantity with the additional requirement that such quantities obey the parallelogram law of addition.
- Mathematicssuch a quantity with the additional requirement that such quantities are to transform in a particular way under changes of the coordinate system.
- Mathematicsany generalization of the above quantities.
- the direction or course followed by an airplane, missile, or the like.
- Ecology[Biol.]
- 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.
- Computingan array of data ordered such that individual items can be located with a single index or subscript.
v.t. - Aeronauticsto guide (an aircraft) in flight by issuing appropriate headings.
- [Aerospace.]to change direction of (the thrust of a jet or rocket engine) in order to steer the craft.
- Latin: one that conveys, equivalent. to vec-, variant stem of vehere to carry + -tor -tor
- 1695–1705;
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