Definitions from Wiktionary ( )

▸ noun:  (mathematics, physics) A directed quantity, one with both magnitude and direction; the signed difference between two points.
▸ noun:  (mathematics, computing) An ordered tuple, originally one representing a directed quantity, but by extension any one-dimensional matrix.
▸ noun:  (mathematics) Any member of a (generalized) vector space.
▸ noun:  (aviation) A chosen course or direction for motion, as of an aircraft.
▸ noun:  (epidemiology) A carrier of a disease-causing agent.
▸ noun:  (sociology) A person or entity that passes along an urban legend or other meme.
▸ noun:  (psychology) A recurring psychosocial issue that stimulates growth and development in the personality.
▸ noun:  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.
▸ noun:  (computing, 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.
▸ noun:  (programming) A kind of dynamically resizable array.
▸ noun:  (computer graphics, attributive) A graphical representation using outlines; vector graphics.
▸ noun:  (molecular biology) A DNA molecule used to carry genetic information from one organism into another.
▸ noun:  (figurative) Forces, developments, phenomena, processes, systems, etc. which influence the trajectory of history (e.g. imperialism)
▸ verb:  To set (particularly an aircraft) on a course toward a selected point.
▸ verb:  (computing) To redirect to a vector, or code entry point.

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