Progression

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.
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
progression
(prə-grěsh’ən)
See sequence.