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.
A fixed-price contract, also known as a lump sum contract, is an agreement between a vendor or seller and a client that stipulates goods and/or services that will be provided and the price that will be paid for them. Fixed-price contracts are common in many IT contexts, including project management, procurement and outsourcing. Having the scope and cost clearly defined from the outset saves administrative time and also avoids much of the negotiation time required for less clear-cut types of agreements.