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
Synonyms: transmitter

"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
Similar spelling:   vestry