monophosphoryl in English dictionary monophosphoryl Meanings and definitions of "monophosphoryl" (organic chemistry, especially in combination) A single phosphoryl group noun (organic chemistry, especially in combination) A single phosphoryl group more Grammar and declension of monophosphoryl monophosphoryl ( uncountable) monophosphoryl (uncountable) more Sample sentences with "monophosphoryl" Declension Stem Try again Authors