a female sex hormone, CHO, present in the urine during pregnancy, thus indicating normal fetal and placental activity
Origin of estrioles(trus) + tri- + -ol
An estrogenic hormone, C18H24O3, that is a metabolite of estradiol and is present chiefly during pregnancy. It is produced by the placenta and is found in the urine of pregnant women.
Origin of estrioles(trus) tri- -ol 1