Phosphamide

Part of speech: noun

Definitions

1. A synthetic organic compound containing phosphorus and nitrogen atoms, employed as an agricultural insecticide or as a reagent in chemical manufacturing
2. An organophosphorus substance combining nitrogen and phosphorus in its molecular structure, used to control insect pests or serve as a building block in organic chemistry
3. A phosphorus-nitrogen compound developed for use as a pesticide against insects or as an intermediate material in the production of other chemicals

Etymology: Phosphamide is a chemical coinage built from two parts: "phospho-", the combining form used in chemistry for compounds containing phosphorus, and "amide", a term for a class of compounds derived from ammonia in which a nitrogen atom is bonded to a carbonyl group or, more loosely, to a carbon atom in a related structure. Put together, the name points to a molecule that combines a phosphorus-containing component with an amide-type nitrogen linkage. The word therefore tells a chemist about structure rather than about history. "Phospho-" comes from the element phosphorus, whose name is itself Greek for "light-bearer," a reference to the faint glow of the element when exposed to air. "Amide" traces back to "ammonia," which is linked to the Egyptian god Amun, whose oasis shrine was near sites where ammonium salts were collected. Because the term is formed systematically from these parts, its meaning is fixed by its components rather than by any story about who first named it.