rooting reflex vs reflex action

rooting reflex and reflex action both are nouns.

Word	Noun	Adjective	Verb	Adverb
rooting reflex	Yes	No	No	No
reflex action	Yes	No	No	No

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

rooting reflex: reflex consisting of head-turning and sucking movements elicited in a normal infant by gently stroking the side of the mouth or cheek
reflex action: an automatic instinctive unlearned reaction to a stimulus

rooting reflex (noun)	reflex action (noun)
reflex consisting of head-turning and sucking movements elicited in a normal infant by gently stroking the side of the mouth or cheek	an automatic instinctive unlearned reaction to a stimulus