mensuralPronunciation: /ˈmɛnʃ(ə)r(ə)l, -sjə-/Definition of mensural adjective of or involving measuring:mensural investigations Music designating or relating to music in a definite metre: mensural notationOrigin: late 16th century: from Latin mensuralis, from mensura 'measure'mensural in other Oxford dictionaries Definition of mensural in the US English dictionary