Morpheme
(O)Estra [ Oestra, Estra]
Type
bound base
Denotation
estrane, steroid hydrocarbon structure that forms the basis of all estrogenic compounds
Etymology
from (o)estrogen (<(O)Estr + -o- + Gen(e)>) + -ane
Evidence
cloxestradiol, estradiol, estradiol, estratriene, oestradiol, oestradiols
