Definition of "progression" []

• The process of progressing; progress. (noun)
• Movement from one member of a continuous series to the next. (noun)
• A continuous series; a sequence. See Synonyms at series. (noun)
• Mathematics A series of numbers or quantities in which there is always the same relation between each quantity and the one succeeding it. (noun)
• Music A succession of tones or chords. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "“The values of the function of _x, ce__kx__, increase according to the terms of a geometrical progression as the variable x increases in arithmetical progression_ ...."
• "In strength training, you must also keep challenging your muscles to grow, which we call progression."
• "They write: “As services, like goods before them, increasingly become commoditized—think of long-distance telephone services sold solely on price—experiences have emerged as the next step in what we call the progression of economic value”"