diethylstilboestrol vs diethylstilbestrol

diethylstilboestrol and diethylstilbestrol both are nouns.

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

As nouns, diethylstilboestrol and diethylstilbestrol are synonyms defined as:

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

Other synonyms of diethylstilboestrol include DES, stilbestrol, stilboestrol.

diethylstilboestrol (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