clot vs thrombus

clot and thrombus both are nouns.

Word	Noun	Adjective	Verb	Adverb
clot	Yes	No	Yes	No
thrombus	Yes	No	No	No

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

clot: a lump of material formed from the content of a liquid
thrombus: a blood clot formed within a blood vessel and remaining attached to its place of origin

Other hyponyms of clot include embolus.

clot (noun)	thrombus (noun)
a lump of material formed from the content of a liquid	a blood clot formed within a blood vessel and remaining attached to its place of origin

clot (verb)	thrombus (verb)
turn into curds
change from a liquid to a thickened or solid state
cause to change from a liquid to a solid or thickened state
coalesce or unite in a mass