11b,17a,21-Trihydroxy-5b-pregnane-3,20-dio ne;a metabolite of cortisole, reduced at the 4,5 double bond. ... Synonym: 4,5a-dihydrocortisol. ... (05 Mar 2000) ... 
Type: Term Pronunciation: hī-dral′ō-stān Definitions: 1. a metabolite of cortisol, reduced at the 4,5 double bond. Synonyms: 4, 5α-dihydrocortisol