| flap gate | <ecology, equipment> A device which allows water to flow in only one direction through a culvert, can be used to allow water to drain out of a wetland during low tide while preventing water from entering the wetland during high tide. (09 Oct 1997) |
|---|---|
| flap operation | An amputation in which flaps of the muscular and cutaneous tissues are made to cover the end of the bone. Synonym: flap operation. (05 Mar 2000) |
| flat flap | A flap in which during transfer the pedicle is left flat or open, i.e., untubed. Synonym: open flap. (05 Mar 2000) |
| free bone flap | Portion of cranium removed and detached from overlying soft tissue structures. (05 Mar 2000) |
| free flap | Island flap in which the donor vessels are severed proximally, the flap is transported as a free object to the recipient area, and the flap is revascularised by anastomosing its supplying vessels to vessels there. (05 Mar 2000) |
| French flap | A rectangular flap raised in an elastic area, with its free end adjacent to a defect; the defect is covered by stretching the flap longitudinally until the end comes over it. Synonym: advancement flap, French flap. (05 Mar 2000) |
| full-thickness flap | A flap of the full thickness of mucosa and submucosa or of skin and subcutaneous tissues. (05 Mar 2000) |
| lined flap | A flap covered with epithelium on both sides; e.g., a folded skin flap. (05 Mar 2000) |
| lingual flap | A flap derived from the tongue; used to close a defect in an adjacent part, such as the lip or palate. Synonym: lingual flap. (05 Mar 2000) |
| liver flap | <clinical sign, neurology> Abnormal muscle tremor consisting of involuntary jerking of the hands. May be seen in liver disease. (27 Sep 1997) |
| local flap | A flap transferred to an adjacent area. (05 Mar 2000) |