|1.||[ noun ] (mathematics) a variable quantity that can be resolved into components|
|Related terms:||variable radius_vector vector_sum radius_vector vector_product|
|2.||[ noun ] 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"
|Related terms:||agent gene_delivery_vector carrier animal microorganism|
|3.||[ noun ] (mathematics,geometry) a straight line segment whose length is magnitude and whose orientation in space is direction|
|Related terms:||straight_line ray|