paraldehyde vs ethanal trimer

paraldehyde and ethanal trimer both are nouns.

Word	Noun	Adjective	Verb	Adverb
paraldehyde	Yes	No	No	No
ethanal trimer	Yes	No	No	No

As nouns, paraldehyde and ethanal trimer are synonyms defined as:

paraldehyde and ethanal trimer: a colorless liquid (a cyclic trimer of acetaldehyde) that is used as a sedative and a solvent

paraldehyde (noun)	ethanal trimer (noun)
a colorless liquid (a cyclic trimer of acetaldehyde) that is used as a sedative and a solvent	a colorless liquid (a cyclic trimer of acetaldehyde) that is used as a sedative and a solvent