Definition of parachor in English:

parachor

noun

Chemistry
  • A numerical quantity (found empirically to be constant over a wide range of temperature) equal to the molecular weight of a liquid multiplied by the fourth root of its surface tension and divided by the difference between the density of the liquid and that of its vapour.

Origin

1920s. From para- + ancient Greek χορός dance, but taken by S. Sugden as if having the sense ‘space’, by mistake for χώρα.

Pronunciation

parachor

/ˈparəkɔː/