vector

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vector[1,noun] vector[2,transitive verb]

Main Entry: ¹vec·tor
Pronunciation: vek-tr
Function: noun
1 : a quantity that has magnitude and direction and that is usually represented by part of a straight line with the given direction and with a length representing the magnitude
2 : an organism (as an insect) that transmits a pathogen from one organism or source to another <fleas are vectors of plague> -- compare CARRIER 1a
3 : an agent (as a plasmid or virus) that contains or carries modified genetic material (as recombinant DNA) and can be used to introduce exogenous genes into the genome of an organism
- vec·to·ri·al /vek-tr--l, -tr-/ adjective