dihydrotachysterol

noun

di·hy·dro·tachy·ste·rol | \ -ˌtak-i-ˈster-ˌȯl

, -ˈstir-

, -ˌōl\

Medical Definition of dihydrotachysterol

: a crystalline alcohol C₂₈H₄₅OH used in the treatment of hypocalcemia (as in hypoparathyroidism)