laboratory coat vs lab coat

laboratory coat and lab coat both are nouns.

Word	Noun	Adjective	Verb	Adverb
laboratory coat	Yes	No	No	No
lab coat	Yes	No	No	No

As nouns, laboratory coat and lab coat are synonyms defined as:

laboratory coat and lab coat: a light coat worn to protect clothing from substances used while working in a laboratory

laboratory coat (noun)	lab coat (noun)
a light coat worn to protect clothing from substances used while working in a laboratory	a light coat worn to protect clothing from substances used while working in a laboratory