teardrop vs driblet

teardrop and driblet both are nouns.

Word	Noun	Adjective	Verb	Adverb
teardrop	Yes	No	No	No
driblet	Yes	No	No	No

As nouns, driblet is a hypernym of teardrop; that is, driblet is a word with a broader meaning than teardrop:

teardrop: a drop of the clear salty saline solution secreted by the lacrimal glands
driblet: a small indefinite quantity (especially of a liquid)

Other hypernyms of teardrop include drib, drop.

teardrop (noun)	driblet (noun)
a drop of the clear salty saline solution secreted by the lacrimal glands	a small indefinite quantity (especially of a liquid)
anything shaped like a falling drop (as a pendant gem on an earring)