isochor
noun
iso·chor
variants or less commonly isochore
-ˌkō(ə)r
plural -s
: a line representing the variation of pressure with temperature when the volume of the substance operated on is constant
isochoric adjective
¦⸗⸗¦kȯrik
-¦kōr-
Word History
Etymology
International Scientific Vocabulary is- + -chor (from Greek chōros place, clear space)