- vector - a variable quantity that can be resolved into components
--1 is a kind of variable, variable quantity
--1 has particulars:vector product, cross product; vector sum, resultant; radius vector; radius vector - vector - a straight line segment whose length is magnitude and whose orientation in space is direction
--2 is a kind of straight line
--2 has particulars: ray- vector, transmitter - 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"
--3 is a kind of agent
--3 has particulars:transducing vector, gene delivery vector; carrier, immune carrier - vector - a straight line segment whose length is magnitude and whose orientation in space is direction