heterotaxy vs abnormalcy

heterotaxy and abnormalcy both are nouns.

Word	Noun	Adjective	Verb	Adverb
heterotaxy	Yes	No	No	No
abnormalcy	Yes	No	No	No

As nouns, abnormalcy is a hypernym of heterotaxy; that is, abnormalcy is a word with a broader meaning than heterotaxy:

heterotaxy: any abnormal position of the organs of the body
abnormalcy: an abnormal physical condition resulting from defective genes or developmental deficiencies

Other hypernyms of heterotaxy include abnormality.

heterotaxy (noun)	abnormalcy (noun)
any abnormal position of the organs of the body	an abnormal physical condition resulting from defective genes or developmental deficiencies