preclinical trial vs preclinical test

preclinical trial and preclinical test both are nouns.

Word	Noun	Adjective	Verb	Adverb
preclinical trial	Yes	No	No	No
preclinical test	Yes	No	No	No

As nouns, preclinical trial and preclinical test are synonyms defined as:

preclinical trial and preclinical test: a laboratory test of a new drug or a new invasive medical device on animal subjects; conducted to gather evidence justifying a clinical trial

Other synonyms of preclinical trial include preclinical phase.

preclinical trial (noun)	preclinical test (noun)
a laboratory test of a new drug or a new invasive medical device on animal subjects; conducted to gather evidence justifying a clinical trial	a laboratory test of a new drug or a new invasive medical device on animal subjects; conducted to gather evidence justifying a clinical trial