enthalpy[en t̸hal′pē, en′t̸həl pē]
a measure of the energy content of a system per unit mass
Origin of enthalpyClassical Greek enthalpein, to warm in (; from en-, en- ; from en, in + thalpein, to heat) + -y
Symbol H A thermodynamic function of a system, equivalent to the sum of the internal energy of the system plus the product of its volume multiplied by the pressure exerted on it by its surroundings.
Origin of enthalpyGreek enthalpein, to heat in (en-, in; see en–2 + thalpein, to heat) + –y2.
(countable and uncountable, plural enthalpies)
From Ancient Greek ἐνθάλπω (enthalpō, “to warm in”).