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.
Firstly, a folio (abbreviated fo or 2Â°) is a book or pamphlet made up of one or more full sheets of paper, on each of which four pages of text are printed, two on each side; each sheet is then folded once to produce two leaves. Each leaf of a folio book thus is one half the size of the original sheet.