baryta

Types:

barium hydroxide

white poisonous crystals; made by dissolving barium oxide in water

barium monoxide, barium oxide, barium protoxide

an oxide of barium; a whitish toxic powder

barium dioxide, barium peroxide

a white toxic powder obtained by heating barium oxide in air

Type of:

Ba, atomic number 56, barium

a soft silvery metallic element of the alkali earth group; found in barite