Mathematics. A sequence of quantities between successive terms of which there is some constant relationship; arrangement in such a series. Chiefly…

Of, pertaining to, or connected with, arithmetic; according to the rules of arithmetic. arithmetical mean, arithmetical progression, arithmetical…

= geometric progression, n.

A sequence of quantities in which the ratio between successive quantities is constant, as 1, 3, 9, 27, etc. Also in extended use.

= geometrical ratio, n.

A manner or mode of change in which successive quantities form an arithmetical progression; an arithmetical progression.

A manner or mode of change in which successive quantities form a geometric progression; a geometric progression.

= arithmetical, adj.

Mathematics. Applied to the relation of quantities whose reciprocals are in arithmetical progression (e.g. 1, 1/2, 1/3, 1/4,…); or to points, lines…