What does projection mean?

Looking for the meaning or definition of the word projection? Here's what it means.

Noun
  1. Something which projects, protrudes, juts out, sticks out, or stands out.
  2. The action of projecting or throwing or propelling something.
  3. The display of an image by devices such as movie projector, video projector, overhead projector or slide projector.
  4. A forecast or prognosis obtained by extrapolation
  5. (psychology) A belief or assumption that others have similar thoughts and experiences as oneself
  6. (photography) The image that a translucent object casts onto another object.
  7. (cartography) Any of several systems of intersecting lines that allow the curved surface of the earth to be represented on a flat surface. The set of mathematics used to calculate coordinate positions.
  8. (geometry) An image of an object on a surface of fewer dimensions.
  9. (linear algebra) An idempotent linear transformation which maps vectors from a vector space onto a subspace.
  10. (mathematics) A transformation which extracts a fragment of a mathematical object.
  11. (category theory) A morphism from a categorical product to one of its (two) components.
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