clot vs embolus

clot and embolus both are nouns.

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

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

clot: a lump of material formed from the content of a liquid
embolus: an abnormal particle (e.g. an air bubble or part of a clot) circulating in the blood

Other hyponyms of clot include thrombus.

clot (noun)	embolus (noun)
a lump of material formed from the content of a liquid	an abnormal particle (e.g. an air bubble or part of a clot) circulating in the blood

clot (verb)	embolus (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