projection

noun pro·jec·tion \ prə-ˈjek-shən \
Updated on: 3 Dec 2017

Definition of projection

1 a : a systematic presentation of intersecting coordinate lines on a flat surface upon which features from a curved surface (as of the earth or the celestial sphere) may be mapped
  • an equal-area map projection
b : the process or technique of reproducing a spatial object upon a plane or curved surface or a line by projecting its points; also : a graph or figure so formed
2 : a transforming change
3 : the act of throwing or thrusting forward
4 : the forming of a plan : scheming
5 a (1) : a jutting out
(2) : a part that juts out
b : a view of a building or architectural element
6 a : the act of perceiving a mental object as spatially and sensibly objective; also : something so perceived
b : the attribution of one's own ideas, feelings, or attitudes to other people or to objects; especially : the externalization of blame, guilt, or responsibility as a defense against anxiety
7 : the display of motion pictures by projecting an image from them upon a screen
8 a : the act of projecting especially to an audience
b : control of the volume, clarity, and distinctness of a voice to gain greater audibility
9 : an estimate of future possibilities based on a current trend

projectional

play \prə-ˈjek-shnəl, -shə-nᵊl\ adjective

Examples of projection in a Sentence

  1. He gave a projection of future expenses.

  2. projections on the rock wall

Recent Examples of projection from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'projection.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Did You Know?

Projection has various meanings, but what they all have in common is that something is sent out or forward. A movie is projected onto a screen; a skilled actress projects her voice out into a large theater without seeming to shout; and something sticking out from a wall can be called a projection. But the meaning we focus on here is the one used by businesses and governments. Most projections of this kind are estimates of a company's sales or profits--or of the finances of a town, state, or country--sometime in the future.

First Known Use of projection

1551

Synonym Discussion of projection

projection, protrusion, protuberance, bulge mean an extension beyond the normal line or surface. projection implies a jutting out especially at a sharp angle.
    • those projections along the wall are safety hazards
protrusion suggests a thrusting out so that the extension seems a deformity.
    • the bizarre protrusions of a coral reef
protuberance implies a growing or swelling out in rounded form.
    • a skin disease marked by warty protuberances
bulge suggests an expansion caused by internal pressure.
    • bulges in the tile floor

Other Cartography Terms



PROJECTION Defined for English Language Learners

projection

noun

Definition of projection for English Language Learners

  • : an estimate of what might happen in the future based on what is happening now

  • : something that sticks out from a surface

  • : the act or process of causing a picture, movie, etc., to appear on a surface


PROJECTION Defined for Kids

projection

noun pro·jec·tion \ prə-ˈjek-shən \

Definition of projection for Students

1 : something that sticks out
2 : the act or process of causing to appear on a surface (as by means of motion pictures or slides)

Medical Dictionary

projection

noun pro·jec·tion \ prə-ˈjek-shən \

medical Definition of projection

1 a : the process or technique of reproducing a spatial object or a section of such an object upon a plane or curved surface
b : a diagram or figure formed by projection; especially : view
2 a : the act of referring a mental image constructed by the brain from bits of data collected by the sense organs to the actual source of stimulation outside the body
b : the attribution of one's own ideas, feelings, or attitudes to other people or to objects; especially : the externalization of blame, guilt, or responsibility as a defense against anxiety
3 : the functional correspondence and connection of parts of the cerebral cortex with other parts of the organism
  • the projection of the retina upon the visual area


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