elementary particle vs fundamental particle

elementary particle and fundamental particle both are nouns.

Word	Noun	Adjective	Verb	Adverb
elementary particle	Yes	No	No	No
fundamental particle	Yes	No	No	No

As nouns, elementary particle and fundamental particle are synonyms defined as:

elementary particle and fundamental particle: (physics) a particle that is less complex than an atom; regarded as constituents of all matter

elementary particle (noun)	fundamental particle (noun)
(physics) a particle that is less complex than an atom; regarded as constituents of all matter	(physics) a particle that is less complex than an atom; regarded as constituents of all matter