From either the Middle French projection or its etymon, the Classical Latin prōiectiō (stem: prōiectiōn-), from prōiciō. Compare the Modern French projection, the German Projektion, and the Italian proiezione.
projection (plural projections)
- Something which projects, protrudes, juts out, sticks out, or stands out.
- The face of the cliff had many projections which are big enough for birds to nest on.
- The action of projecting or throwing or propelling something.
- The display of an image by devices such as movie projector, video projector, overhead projector or slide projector.
- A forecast or prognosis obtained by extrapolation
- (psychology) A belief or assumption that others have similar thoughts and experiences as oneself
- (photography) The image that a translucent object casts onto another object.
- (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.
- (geometry) An image of an object on a surface of fewer dimensions.
- (linear algebra) An idempotent linear transformation which maps vectors from a vector space onto a subspace.
- (mathematics) A transformation which extracts a fragment of a mathematical object.
- (category theory) A morphism from a categorical product to one of its (two) components.
- (something which sticks out): protuberance
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projection f (plural projections)