(of a nuclear reactor) that uses liquid sodium as a coolant

any soap made by the reaction of fat with sodium hydroxide

(chemistry) An alloy of sodium and mercury; used as a powerful reducing agent, and in certain types of sodium lamp.

(biochemistry) The transport of sodium ions across biological membranes using the metabolic energy of ATP.

(inorganic chemistry) A strong, caustic alkali (NaOH) used in the manufacture of soap, detergents, paper, textiles and having many other industrial applications.

(chemistry) The sodium salt of acetic acid.

(chemistry) A white solid, NaNH₂ obtained by reacting ammonia with metallic sodium; it is used in the production of hydrazine, and indigo dyes.

(chemistry) A salt, Na₂CO₃ formally derived from sodium hydroxide and carbonic acid; it is a white powder, soluble in water, with domestic, commercial and industrial uses; it occurs naturally as natrite

(chemistry) The sodium salt of stearic acid; a constituent of soap.

(pharmacology) Thiopental.