projection

English Online Dictionary. What means projection‎? What does projection mean?

English

Etymology

From either the Middle French projection or its etymon, the Classical Latin prōiectiō (stem: prōiectiōn-), from prōiciō, equivalent to project +‎ -ion. Compare the Modern French projection, the German Projektion, and the Italian proiezione.

Pronunciation

• IPA^(key): /pɹəˈd͡ʒɛkʃən/
• Rhymes: -ɛkʃən

Noun

projection (countable and uncountable, plural projections)

1. Something which projects, protrudes, juts out, sticks out, or stands out.

2. The action of projecting or throwing or propelling something.
3. (archaic) The crisis or decisive point of any process, especially a culinary process.
4. The display of an image by devices such as movie projector, video projector, overhead projector or slide projector.
5. A forecast or prognosis obtained by extrapolation
6. (psychology) A belief or assumption that others have similar thoughts and experiences to one's own, including making accusations that would more fittingly apply to the accuser.
7. (photography) The image that a translucent object casts onto another object.
8. (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.
9. (geometry) An image of an object on a surface of fewer dimensions.
10. (linear algebra) An idempotent linear transformation which maps vectors from a vector space onto a subspace.
11. (mathematics) A transformation which extracts a fragment of a mathematical object.
12. (category theory) A morphism from a categorical product to one of its (two) components.
13. (grammar) The preservation of the properties of lexical items while generating the phrase structure of a sentence. See Projection principle.
14. (alchemy, obsolete) A supposed mechanism for the transmutation of large quantities of base metals.

Synonyms

• (something which sticks out): protuberance

Derived terms

Related terms

Translations

Further reading

• projection on Wikipedia.Wikipedia

French

Etymology

Learned borrowing from Latin prōiectiō.

Pronunciation

• IPA^(key): /pʁɔ.ʒɛk.sjɔ̃/

Noun

projection f (plural projections)

1. (psychology) projection
2. (cartography) projection
3. (linear algebra, mathematics) projection
4. (film) screening or viewing of a film

Related terms

• projeter

Further reading

• “projection”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

Interlingua

Noun

projection (plural projectiones)

1. projection