vinyl vs vinyl radical

vinyl and vinyl radical both are nouns.

Word	Noun	Adjective	Verb	Adverb
vinyl	Yes	No	No	No
vinyl radical	Yes	No	No	No

As nouns, vinyl and vinyl radical are synonyms defined as:

vinyl and vinyl radical: a univalent chemical radical derived from ethylene

Other synonyms of vinyl include vinyl group.

vinyl (noun)	vinyl radical (noun)
a univalent chemical radical derived from ethylene	a univalent chemical radical derived from ethylene
shiny and tough and flexible plastic; used especially for floor coverings