(chemistry) a brilliant white powder, TiO₂, used as a pigment, and in sunblock, toothpaste and cosmetics

Alternative form of Dionysus

Pertaining to a diocese.

The bishop of a diocese. / An inhabitant of a diocese.

(physics) A semiconductor rectifying device in which the barrier between the two regions of opposite conductivity (n-type and p-type) type produces the rectification. All solar cells are junction diodes.

(inorganic chemistry, chiefly British spelling) Alternative spelling of sulfur dioxide

(physics) A rectifying semiconductor device which converts electrical energy into electromagnetic radiation of a wavelength in or near the visible spectrum of light.

(American spelling, inorganic chemistry) A toxic gas, of molecular formula SO₂ that is found in the emissions of volcanos and those of burning coal or petroleum; dissolves in water to form sulfurous acid and, in the presence of oxygen, sulfuric acid, and is thus responsible for acid rain.

(chemistry) hydrogen peroxide

plural of diocese