Phosphine, also known as phosphane, is a colorless and flammable gas that consists of one atom of phosphorus and three atoms of hydrogen. It is used in various industries, such as agriculture and pesticides. However, due to its toxic nature, it can also be deadly when concentrations are high. Synonyms for phosphine include hydrogen phosphide, phosphorus trihydride, and phosphorus hydride. Other derived terms containing the word phosphine are tris(phosphino)amine, aminobisphosphonate, and phosphine oxide. Understanding these synonyms and related terms can help individuals more easily identify and communicate about this chemical compound.