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Noun
- (genetics) a virus or other agent that is used to deliver DNA to a cell
- any agent (person or animal or microorganism) that carries and transmits a disease
- mosquitos are vectors of malaria and yellow fever
- fleas are vectors of the plague
- aphids are transmitters of plant diseases
- when medical scientists talk about vectors they are usually talking about insects
- a straight line segment whose length is magnitude and whose orientation in space is direction
- a variable quantity that can be resolved into components