radiation pressure vs corpuscular-radiation pressure

radiation pressure and corpuscular-radiation pressure both are nouns.

Word	Noun	Adjective	Verb	Adverb
radiation pressure	Yes	No	No	No
corpuscular-radiation pressure	Yes	No	No	No

As nouns, radiation pressure and corpuscular-radiation pressure are synonyms defined as:

radiation pressure and corpuscular-radiation pressure: the minute pressure exerted on a surface normal to the direction of propagation of a wave

radiation pressure (noun)	corpuscular-radiation pressure (noun)
the minute pressure exerted on a surface normal to the direction of propagation of a wave	the minute pressure exerted on a surface normal to the direction of propagation of a wave