Ses-quip'li-cate, a.

(Synop., § 120), a. [Prefix sesqui- and plicare.] A ratio compounded of the sesquialterate; — a term applied to ratios; thus, a and a′ are in the sesquiplicate ratio of b and b′, when a is to a′ as the square root of the cube of b is to the square root of the cube of b′, or a : a′ : : √b³ : √b′³.

The periodic times of the planets are in the sesquiplicate ratio of their mean distances. Newton.