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programmed instruction a program of study divided into discrete units that students may complete at their own pace, being required only to finish one unit before advancing to the next.
programmer one who prepares a program, esp. for a computer.
programming the activity or job of writing instructions in code for computers.
program music instrumental music intended to evoke or depict a scene, story, event, or the like.
progress movement toward a specific end; advance. [5 definitions]
progression the act of progressing. [3 definitions]
progressive moving steadily forward or onward; advancing. [8 definitions]
Progressive Party any of three short-lived U.S. political parties of the early and mid-twentieth century that advocated policies considered progressive or radical in their time.
prohibit to forbid (an action) by authority. [3 definitions]
prohibition the act of prohibiting. [4 definitions]
prohibitive serving as a prohibition; forbidding. [2 definitions]
project any undertaking that requires great effort or organization. [11 definitions]
projectable combined form of project.
projectile an object that is thrown, fired, or impelled by an outside force or weapon. [3 definitions]
projection the act or state of projecting. [7 definitions]
projection booth a small room in a theater from which film, slides, or the like are projected onto a screen; projection room.
projectionist a person who operates a film projector.
projector a machine for projecting an image onto a screen by casting a beam of light through photographic film.
prokaryote an organism that lacks a nucleus membrane and that reproduces by fission. (Cf. eukaryote.)
prolactin a pituitary hormone that stimulates milk secretion in mammals.
prolapse the falling down or slipping out of place of a body part or organ, esp. the uterus. [2 definitions]