D defs.my
Entry 1 sense Webster, 1913

Mortiferous

· Mor·tif·er·ous · IPA /mɔːˈtɪfəɹəs/
01 a. Bringing or producing death; deadly; destructive; as, a mortiferous herb.
  1. 1.
    Bringing or producing death; deadly; destructive; as, a mortiferous herb.