harmonic conjugates

plural noun

, Mathematics.

1. two points whose cross ratio with two specified points equals −1.

Word History and Origins

Origin of harmonic conjugates¹

First recorded in 1880–85

Example Sentences

Any two conjugate diameters of an hyperbola are harmonic conjugates with regard to the asymptotes.

From Project Gutenberg

In an hyperbolic involution any two conjugate points are harmonic conjugates with regard to the two foci.

From Project Gutenberg