ethyl ether vs diethyl ether

ethyl ether and diethyl ether both are nouns.

Word	Noun	Adjective	Verb	Adverb
ethyl ether	Yes	No	No	No
diethyl ether	Yes	No	No	No

As nouns, ethyl ether and diethyl ether are synonyms defined as:

ethyl ether and diethyl ether: a colorless volatile highly flammable liquid formerly used as an inhalation anesthetic

Other synonyms of ethyl ether include divinyl ether, ether, ethoxyethane, vinyl ether.

ethyl ether (noun)	diethyl ether (noun)
a colorless volatile highly flammable liquid formerly used as an inhalation anesthetic	a colorless volatile highly flammable liquid formerly used as an inhalation anesthetic