Oral mucocele (also termed mucous retention cyst, mucous extravasation cyst, mucous cyst of the oral mucosa, and mucous retention and extravasation phenomena) is a clinical term that refers to two related phenomena:1  Mucus extravasation phenomenon.ral mucocele (also termed mucous retention cyst, mucous extravasation cyst, mucous cyst of the oral mucosa, and mucous retention and extravasation phenomena) is a clinical term that refers to two related phenomena:
A CFD, or Contract for Difference, is an agreement between two parties to exchange the difference between the opening price and closing price of a contract. CFD, or Contract for Difference, is an agreement between two parties to exchange the difference between the opening price and closing price of a contract.
In essence, a contractâs outline is more formal and more rigidly presented than the terms outlined in an agreement. A contract is a legally binding agreement reached between two parties, the terms of which the courts have the authority and obligation to enforce. An agreement is a less formal creation of an obligation between the two parties. An agreement usually lacks one or more of the essential elements that are required to be present in order to form a valid contract that will be considered legally enforceable by a court of law.