achondroplasia

from WordNet (r) 3.0 (2006)

achondroplasia
    n 1: an inherited skeletal disorder beginning before birth;
         cartilage is converted to bone resulting in dwarfism [syn:
         {achondroplasia}, {achondroplasty}, {osteosclerosis
         congenita}, {chondrodystrophy}]

from The Collaborative International Dictionary of English v.0.48

achondroplasia \achondroplasia\ n. (Med.)
   A skeletal disorder beginning before birth; cartilage is
   converted to bone resulting in dwarfism.
   [WordNet 1.5]

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