a variable quantity that can be resolved into components
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 person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence; "he fell prey to muggers"; "everyone was fair game"; "the target of a manhunt"
profit from in an exploitatory manner; "He feeds on her insecurity"