startle vs Moro reflex

startle and Moro reflex both are nouns.

Word	Noun	Adjective	Verb	Adverb
startle	Yes	No	Yes	No
Moro reflex	Yes	No	No	No

As nouns, Moro reflex is a hyponym of startle; that is, Moro reflex is a word with a more specific, narrower meaning than startle:

startle: a sudden involuntary movement
Moro reflex: a normal reflex of young infants; a sudden loud noise causes the child to stretch out the arms and flex the legs

Other hyponyms of startle include startle reaction, startle response, startle reflex, flinch, wince.

startle (noun)	Moro reflex (noun)
a sudden involuntary movement	a normal reflex of young infants; a sudden loud noise causes the child to stretch out the arms and flex the legs

startle (verb)	Moro reflex (verb)
to stimulate to action
move or jump suddenly, as if in surprise or alarm