intravenous drip vs trickle

intravenous drip and trickle both are nouns.

Word	Noun	Adjective	Verb	Adverb
intravenous drip	Yes	No	No	No
trickle	Yes	No	Yes	No

As nouns, trickle is a hypernym of intravenous drip; that is, trickle is a word with a broader meaning than intravenous drip:

intravenous drip: slow continuous drip introducing solutions intravenously (a drop at a time)
trickle: flowing in drops; the formation and falling of drops of liquid

Other hypernyms of intravenous drip include dribble, drip.

intravenous drip (noun)	trickle (noun)
slow continuous drip introducing solutions intravenously (a drop at a time)	flowing in drops; the formation and falling of drops of liquid

intravenous drip (verb)	trickle (verb)
	run or flow slowly, as in drops or in an unsteady stream