cryoscopy

cry·os·co·py

noun \krī-ˈäs-kə-pē\

plural cry·os·co·pies

Definition of CRYOSCOPY

: the determination of the lowered freezing points produced in liquid by dissolved substances in order to find the molecular weights of solutes and various properties of solutions

—cryo·scop·ic \ˌkrī-ə-ˈskäp-ik\ adjective