research lab vs lab

research lab and lab both are nouns.

Word	Noun	Adjective	Verb	Adverb
research lab	Yes	No	No	No
lab	Yes	No	No	No

As nouns, research lab and lab are synonyms defined as:

research lab and lab: a workplace for the conduct of scientific research

Other synonyms of research lab include laboratory, research laboratory, science lab, science laboratory.

research lab (noun)	lab (noun)
a workplace for the conduct of scientific research	a workplace for the conduct of scientific research