anchylosis vs ankylosis

anchylosis and ankylosis both are nouns.

Word	Noun	Adjective	Verb	Adverb
anchylosis	Yes	No	No	No
ankylosis	Yes	No	No	No

As nouns, anchylosis and ankylosis are synonyms defined as:

anchylosis and ankylosis: abnormal adhesion and rigidity of the bones of a joint

anchylosis (noun)	ankylosis (noun)
abnormal adhesion and rigidity of the bones of a joint	abnormal adhesion and rigidity of the bones of a joint