1. Plural of parachor; a physical constant used in chemistry to relate surface tension of a liquid to its molecular weight and density.
Usage: technical; chemistry

Examples

• The parachors of various organic compounds were calculated to predict their surface tension properties.
• Chemists use parachors to estimate interfacial tension between immiscible liquids.
• The parachor method provides a useful approximation when experimental surface tension data are unavailable.