fibrodysplasia ossificans progressiva

noun

fi·​bro·​dys·​pla·​sia os·​sif·​i·​cans pro·​gres·​si·​va ˌfī-brō-di-ˈsplā-zh(ē-)ə-ä-ˈsi-fə-ˌkanz-prə-ˈgre-sə-və 

: a rare hereditary disorder that is characterized by the progressive ossification of muscle and connective tissue and that is inherited as an autosomal recessive trait

Fibrodysplasia ossificans progressiva in humans appears to be the only known example of a naturally occurring genetic disorder of osteogenesis that is associated with overexpression of a bone morphogenetic protein.

—Adam B. Shafritz et al., New England Journal of Medicine

called also stone man syndrome