asynclitism vs abnormalcy

asynclitism and abnormalcy both are nouns.

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

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

asynclitism: the presentation during labor of the head of the fetus at an abnormal angle
abnormalcy: an abnormal physical condition resulting from defective genes or developmental deficiencies

Other hypernyms of asynclitism include abnormality.

asynclitism (noun)	abnormalcy (noun)
the presentation during labor of the head of the fetus at an abnormal angle	an abnormal physical condition resulting from defective genes or developmental deficiencies