(inorganic chemistry) The alkaline salt K₂CO₃, that is the major constituent of potash; it is used in the production of glass and some soaps.

(inorganic chemistry) The alkaline base KOH, once known as caustic potash; it has a number of industrial uses, including the manufacture of bleach.

(dated) Potassium hydroxide.

A particular artificial sweetener.

The artificial sweetener, potassium 6-methyl-2,2-dioxo-oxathiazin-4-olate

(physiology) A short-term change in the electrical potential that travels along a cell such as a nerve or muscle fiber.

(simile, transitive, informal) To get rid of or stop doing as quickly as possible.

Alternative spelling of afterpotential

cream of tartar

(inorganic chemistry) An odorless, slightly basic substance which is soluble in water and often used to offset acidity.