invitation noun (ASK TO AN EVENT). A2 [C or U] the âact of âinviting someone to go to an âevent: Thanks for the invitation to âyour âbirthday âparty. I'm âhappy to âaccept âyour invitation. The first âday of the âexhibition will be by invitation (only) (= only those who have been âinvited can come).
fibrodysplasia ossificans progressiva. Description. Fibrodysplasia ossificans progressiva (FOP) is a disorder in which muscle tissue and connective tissue such as tendons and ligaments are gradually replaced by bone (ossified), forming bone outside the skeleton (extra-skeletal or heterotopic bone) that constrains movement.
What is fibrodysplasia ossificans progressiva? Fibrodysplasia ossificans progressiva (FOP) is a rare disorder in which bone forms outside of the skeletal structure. Muscle, ligaments, and tendons become ossified, or replaced by bone, which can severely restrict or prevent movement. What are the symptoms of fibrodysplasia ossificans progressiva?