horripilation vs goose bump

horripilation and goose bump both are nouns.

Word	Noun	Adjective	Verb	Adverb
horripilation	Yes	No	No	No
goose bump	Yes	No	No	No

As nouns, horripilation and goose bump are synonyms defined as:

horripilation and goose bump: reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation

Other synonyms of horripilation include goose pimple, goose skin, goosebump, gooseflesh, pilomotor reflex.

horripilation (noun)	goose bump (noun)
reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation	reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation