goose bump vs reflex response

goose bump and reflex response both are nouns.

Word	Noun	Adjective	Verb	Adverb
goose bump	Yes	No	No	No
reflex response	Yes	No	No	No

As nouns, reflex response is a hypernym of goose bump; that is, reflex response is a word with a broader meaning than goose bump:

goose bump: reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation
reflex response: an automatic instinctive unlearned reaction to a stimulus

goose bump (noun)	reflex response (noun)
reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation	an automatic instinctive unlearned reaction to a stimulus