horripilation vs gooseflesh

horripilation and gooseflesh both are nouns.

Word	Noun	Adjective	Verb	Adverb
horripilation	Yes	No	No	No
gooseflesh	Yes	No	No	No

As nouns, horripilation and gooseflesh are synonyms defined as:

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

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

horripilation (noun)	gooseflesh (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