achondroplasia vs achondroplasty

achondroplasia and achondroplasty both are nouns.

Word	Noun	Adjective	Verb	Adverb
achondroplasia	Yes	No	No	No
achondroplasty	Yes	No	No	No

As nouns, achondroplasia and achondroplasty are synonyms defined as:

achondroplasia and achondroplasty: an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism

Other synonyms of achondroplasia include chondrodystrophy, osteosclerosis congenita.

achondroplasia (noun)	achondroplasty (noun)
an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism	an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism