deviative, a.
(ˈdiːvɪətɪv)
[f. L. dēviāt- ppl. stem + -ive.]
Causing or tending to deviation or deflexion.
| 1878 Lockyer Stargazing 400 A crown-glass prism is cemented on a flint one of sufficient angle that their deviative powers reverse each other. |