dispersive

[ dih-spur-siv ]

/ dɪˈspɜr sɪv /

serving or tending to disperse.

Origin of dispersive

First recorded in 1620–30; disperse + -ive

dis·per·sive·ly, adverb dis·per·sive·ness, noun non·dis·per·sive, adjective

(b) If r2 < r1 the lens is dispersive so long as d < n(r1 − r2)/(n − 1).

Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 4 |Various
These effects are due to the difference in dispersive power of the powder and the liquid.

Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 |Various
The effect in question depends upon the dispersive power of the prism.

Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 6 |Various
He was anything but a philanthropist; his weaknesses, if he had any, were not dispersive, but thoroughly concentric.

Springhaven |R. D. Blackmore

The refractive and dispersive powers are not high, so that the cut stones display little brilliancy or “fire.”

Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 |Various

dispersive

/ (dɪˈspɜːsɪv) /

tending or serving to disperse

dispersively, adverb dispersiveness, noun