¹ Source: wiktionary.com
Medical Definition of Phosphoarginine
1. A compound (in particular, a phosphagen) of l-arginine with phosphoric acid containing the phosphoamide bond; a source of energy in the contraction of muscle in invertebrates, corresponding to phosphocreatine in the muscles of vertebrates. Compare: phosphocreatine. Synonym: arginine phosphate. (05 Mar 2000)