Medical Definition of equilin
: a crystalline estrogenic hormone that is a phenolic steroid ketone C18H20O2 and is obtained from the urine of pregnant mares
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors
- On Contractions of Multiple Words
- A Look at Uncommon Onomatopoeia
- Is Singular 'They' a Better Choice?