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Noun vector has 3 senses
  1. 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
  2. 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
  3. 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
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