Stilboestrol and Stilbesterol

Stilboestrol noun - A potent estrogen used in medicine and in feed for livestock and poultry.

Stilbesterol and stilboestrol are semantically related. In some cases you can replace term "Stilbesterol" with "Stilboestrol", this nouns are similar.

Stilbesterol noun - Synthetic nonsteroid with the properties of estrogen; formerly used to treat menstrual problems but was found to be associated with vaginal cancers in the daughters of women so treated during pregnancy.

Stilboestrol and stilbesterol are semantically related. You can use "Stilboestrol" instead a noun "Stilbesterol".