Origin: Greek prefix anti-
Antimony has 2 different meanings across 1 category:
a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite
A chemical element (symbol Sb, from Latin stibium) with an atomic number of 51: a lustrous gray metalloid.
The word comes from Medieval Latin antimonium, which was first recorded in the 11th century. It originally referred to a specific mineral compound containing the element.