stilboestrol vs diethylstilbestrol

stilboestrol and diethylstilbestrol both are nouns.

Word	Noun	Adjective	Verb	Adverb
stilboestrol	Yes	No	No	No
diethylstilbestrol	Yes	No	No	No

As nouns, stilboestrol and diethylstilbestrol are synonyms defined as:

stilboestrol and diethylstilbestrol: a potent estrogen used in medicine and in feed for livestock and poultry

Other synonyms of stilboestrol include DES, diethylstilboestrol, stilbestrol.

stilboestrol (noun)	diethylstilbestrol (noun)
a potent estrogen used in medicine and in feed for livestock and poultry	a potent estrogen used in medicine and in feed for livestock and poultry