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(1)   A variable quantity that can be resolved into components
(2)   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)   A straight line segment whose length is magnitude and whose orientation in space is direction


From , from .


  1. a directed quantity, one with both magnitude and direction; an element of a vector space
  2. a chosen course or direction for motion, as of an aircraft
  3. a carrier of a disease-causing agent
  4. a person or entity that passes along an urban legend or other meme from the concept of biological vector
  5. a recurring psychosocial issue that stimulates growth and development in the personality
  6. the way in which the eyes are drawn across the visual text. The trail that a book cover can encourage the eyes to follow from certain objects to others
  7. (operating systems) a memory address containing the address of a code entry point, usually one which is part of a table and often one that is dereferenced and jumped to during the execution of an interrupt
  8. A one-dimensional array.

Usage notes

The term vector is used loosely when the indices are not (either postitive or non-negative) integers.


vector m (Plural: vectoren, diminutive: vectortje)
  1. an element of a vector space