hemocryoscopy

he·mo·cry·os·co·py

(hē'mō-krī-os'kŏ-pē),
Determination of the freezing point of blood.
[hemo- + G. kryos, cold, + skopeō, to examine]

hemocryoscopy

An older, obsolete technique for determining the freezing point of blood, a diagnostic test of dubious clinical utility.