a. [f. L. ursi, ursus bear: see -CIDE 2 and -AL.] Of or pertaining to the killing of bears.

1

1857.  Fraser’s Mag., LVI. 146/2. Various ursacidal [sic] schemes to be put in practice at Jan Mayen.

2

1901.  Daily News, 8 March, 4/7. It greatly disturbed the mental balance of the brown bear. Ursicidal mania was his complaint.

3