desmosterol
noun
des·mos·ter·ol
| \ dez-ˈmäs-tə-ˌrȯl
, -ˌrōl
\
, -ˌrōl
\
Medical Definition of desmosterol
: a precursor C27H43OH of cholesterol that tends to accumulate in blood serum when cholesterol synthesis is inhibited
— called also 24-dehydrocholesterol