isochoreadjectivecommon nounSyllable DecompositionisochoreEtymologyexpandFrom Ancient Greek ἴσος, iso, 'same' and χώρα khôra, 'place occupied, space'.Definition1. Curve representing the variation of pressure as a function of the temperature of a gas, with the volume remaining constant.physiqueexpandPluralisochoresTranslationsswedish:isokorSee alsoisochores (adj.)