clubfoot vs malformation

clubfoot and malformation both are nouns.

Word	Noun	Adjective	Verb	Adverb
clubfoot	Yes	No	No	No
malformation	Yes	No	No	No

As nouns, malformation is a hypernym of clubfoot; that is, malformation is a word with a broader meaning than clubfoot:

clubfoot: congenital deformity of the foot usually marked by a curled shape or twisted position of the ankle and heel and toes
malformation: an affliction in which some part of the body is misshapen or malformed

Other hypernyms of clubfoot include deformity, misshapenness.

clubfoot (noun)	malformation (noun)
congenital deformity of the foot usually marked by a curled shape or twisted position of the ankle and heel and toes	something abnormal or anomalous
	an affliction in which some part of the body is misshapen or malformed