vector - definition and synonyms

noun [countable] 

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/ˈvektə(r)/
singularvector
pluralvectors
  1. 1
    physics a quantity such as velocity (=speed at which something travels) that can change and is measured by its size and its direction
  2. 3
    biology an insect or other small animal that carries diseases between larger animals and humans, but is not itself harmed by the disease
    1. a.
      science a very small part of a cell, used in genetic engineering for carrying genetic material from one cell to another