deglutition vs gulp

deglutition and gulp both are nouns.

Word	Noun	Adjective	Verb	Adverb
deglutition	Yes	No	No	No
gulp	Yes	No	Yes	No

As nouns, gulp is a hyponym of deglutition; that is, gulp is a word with a more specific, narrower meaning than deglutition:

Other hyponyms of deglutition include aerophagia, draft, draught, swig, sip.

deglutition (noun)	gulp (noun)
the act of swallowing	a large and hurried swallow
	a spasmodic reflex of the throat made as if in swallowing

deglutition (verb)	gulp (verb)
	utter or make a noise, as when swallowing too quickly
	to swallow hurriedly or greedily or in one draught