progression

[pruh-gresh-uh n] /prəˈgrɛʃ ən/
noun
1.
the act of progressing; forward or onward movement.
2.
a passing successively from one member of a series to the next; succession; sequence.
3.
Mathematics. a succession of quantities in which there is a constant relation between each member and the one succeeding it.
Compare arithmetic progression, geometric progression, harmonic progression.
4.
Music. the manner in which chords or melodic tones follow one another; a succession of chords or tones.
5.
Astrology. any of a variety of methods of comparing the natal chart to subsequent planetary positions in order to establish an optimum time to accomplish things or to establish the probable time an event occurred or will occur.
Origin
1400-50; late Middle English < Latin prōgressiōn- (stem of prōgressiō). See progress, -ion
Related forms
progressional, adjective
progressionally, adverb
Examples from the web for progression
  • The increasing accessibility of ideas is more of a progression than a rupture.
  • Haphazard career progression allows the well-connected to wriggle in.
  • They postulate that there was an extended period of evolutionary progression that left behind a scant fossil record.
  • There are those who oppose the progression toward leniency.
  • The repeated cycles of progression and failure of human civilization are slowly being revealed.
  • Glaucoma cannot be cured, but treatment may help delay disease progression.
  • The natural progression of paternalism is the inability to make decisions, requiring more and more to be made for us.
  • Curtis describes a progression of behavior in so-called problem coyote areas.
  • Halting disease progression has not yet been achieved.
  • Traditionally, mammoths have been cast as following a straight-line progression with relatively few splits.
British Dictionary definitions for progression

progression

/prəˈɡrɛʃən/
noun
1.
the act of progressing; advancement
2.
the act or an instance of moving from one thing or unit in a sequence to the next
3.
(maths) a sequence of numbers in which each term differs from the succeeding term by a constant relation See also arithmetic progression, geometric progression, harmonic progression
4.
(music) movement, esp of a logical kind, from one note to the next (melodic progression) or from one chord to the next (harmonic progression)
5.
(astrology) one of several calculations, based on the movement of the planets, from which it is supposed that one can find the expected developments in a person's birth chart and the probable trends of circumstances for a year in his life
Derived Forms
progressional, adjective
progressionally, adverb
Word Origin and History for progression
n.

late 14c., "action of moving from one condition to another," from Old French progression and directly from Latin progressionem (nominative progressio) "a going forward, advancement, growth, increase," noun of action from past participle stem of progredi "go forward," from pro- "forward" (see pro-) + gradi "to step, walk," from gradus "step" (see grade (n.)).

progression in Science
progression
  (prə-grěsh'ən)   
See sequence.