The reduction in the concentration of dissolved oxygen in water, especially as a result of pollution.

the difference between the oxygen uptake of the body at rest and during exercise

(inorganic chemistry) silicon dioxide (SiO₂), silica. / (inorganic chemistry) silicon monoxide (SiO).

(chemistry) any oxide of rubidium, but especially the yellow solid Rb₂O; it is a strong base, reacting strongly with water to form the hydroxide and with acids to form normal salts

Alternative spelling of sulfur oxide

(chemistry) Any binary compound of sulfur and oxygen; either sulfur monoxide, sulfur dioxide or sulfur trioxide.

(inorganic chemistry) Any binary compound of chlorine and oxygen.

(organic chemistry) A strong-smelling liquid, ((CH₃)₂As)₂O

A cart designed to be drawn by an ox or oxen.

oxidation