Merriam-Webster Collegiate Dictionary - projection

 noun  Date: 1557  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 ~  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  • ~al adjective Synonyms:  ~, protrusion, protuberance, bulge mean an extension beyond the normal line or surface. ~ implies a jutting out especially at a sharp angle those ~s 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.