brachydactylia vs abnormalcy

brachydactylia and abnormalcy both are nouns.

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

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

brachydactylia: abnormal shortness of fingers and toes
abnormalcy: an abnormal physical condition resulting from defective genes or developmental deficiencies

Other hypernyms of brachydactylia include abnormality.

brachydactylia (noun)	abnormalcy (noun)
abnormal shortness of fingers and toes	an abnormal physical condition resulting from defective genes or developmental deficiencies