dihydroxy-
combining form
: containing two hydroxyl groups
dihydroxyacetone
combining form
: containing two hydroxyl groups
dihydroxyacetone
ORIGIN: from di- 2hydroxy- 
dihydroxy-
combining form 
Etymology: International Scientific Vocabulary di- + hydroxy- 
 : containing two hydroxyl groups  — in names of chemical compounds
< dihydroxysuccinic acid >
< dihydroxysuccinic acid >