horripilation vs innate reflex

horripilation and innate reflex both are nouns.

Word	Noun	Adjective	Verb	Adverb
horripilation	Yes	No	No	No
innate reflex	Yes	No	No	No

As nouns, innate reflex is a hypernym of horripilation; that is, innate reflex is a word with a broader meaning than horripilation:

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

horripilation (noun)	innate reflex (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