偏へん微び分ぶん方ほう程てい式しきへんびぶんほうていしきじ字FuriganaMeanings1nounpartial differential equationmathematics›Technical term in mathematics; refers to an equation involving partial derivatives of an unknown function.偏へん微び分ぶん方ほう程てい式しきは物ぶつ理り学がくや工