(inorganic chemistry) The anion B(SO₄)₄⁵⁻ / (inorganic chemistry) Any salt containing this anion

Alternative form of Q.E.D. (“initialism of quod erat demonstrandum”)

(computing) A programming language that aims to increase modularity by allowing the separation of cross-cutting concerns.

(medicine) A mixture of paracetamol and dextropropoxyphene used as a painkiller