progression definition

<administration> Going from one educational stage to another through to the completion of a course.

1. The act of moving forward; a proceeding in a course; motion onward.

2. Course; passage; lapse or process of time. "I hope, in a short progression, you will be wholly immerged in the delices and joys of religion." (Evelyn)

3. <mathematics> Regular or proportional advance in increase or decrease of numbers; continued proportion, arithmetical, geometrical, or harmonic.

4. A regular succession of tones or chords; the movement of the parts in harmony; the order of the modulations in a piece from key to key. Arithmetical progression, a progression in which the terms increase or decrease by equal differences, as the numbers by the difference 2. Geometrical progression, a progression in which the terms increase or decrease by equal ratios, as the numbers by a continual multiplication or division by 2. Harmonic progression, a progression in which the terms are the reciprocals of quantities in arithmetical progression, as 1/2, 1/4, 1/6, 1/8, 1/10.

Origin: L. Progressio: cf. F. Progression.