(|)hī|dräksə̇l+ noun
Etymology: International Scientific Vocabulary hydroxyl (from English) + ammonium
: the univalent cation HONH 3 + derived from hydroxylamine and present in its salts which are obtainable by hydrolysis of a primary nitroparaffin (as nitromethane) with water and a strong acid
hydroxylammonium chloride HONH 3 Cl or hydroxylamine hydrochloride NH 2 OH.HCl