blood clotting vs clotting

blood clotting and clotting both are nouns.

Word	Noun	Adjective	Verb	Adverb
blood clotting	Yes	No	No	No
clotting	Yes	No	No	No

As nouns, clotting is a hypernym of blood clotting; that is, clotting is a word with a broader meaning than blood clotting:

blood clotting: a process in which liquid blood is changed into a semisolid mass (a blood clot)
clotting: the process of forming semisolid lumps in a liquid

Other hypernyms of blood clotting include coagulation, curdling.

blood clotting (noun)	clotting (noun)
a process in which liquid blood is changed into a semisolid mass (a blood clot)	the process of forming semisolid lumps in a liquid