| rete mirabile | A vascular network interrupting the continuity of an artery or vein, such as occurs in the glomeruli of the kidney (arterial) or in the liver (venous). (05 Mar 2000) |
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| rete ovarii | <physiology> A transient network of cells in the developing ovary; homologous to the rete testis. (05 Mar 2000) |
| rete patellae | The superficial portion of the articular vascular network of the knee. Synonym: rete patellae. (05 Mar 2000) |
| rete pegs | <dermatology, physiology> Downward thickening of the epidermis between the dermal papillae; peg is a misnomer because the dermal papillae are cylindrical but the epidermal thickening between papillae is not. Synonym: interpapillary ridges, rete pegs. (05 Mar 2000) |
| rete ridges | <dermatology, physiology> Downward thickening of the epidermis between the dermal papillae; peg is a misnomer because the dermal papillae are cylindrical but the epidermal thickening between papillae is not. Synonym: interpapillary ridges, rete pegs. (05 Mar 2000) |
| rete subpapillare | <physiology> The network of vessels between the papillary and reticular strata of the corium. (05 Mar 2000) |
| rete testis | <anatomy> The network of canals at the termination of the straight seminiferous tubules in the mediastinum testis. (12 Dec 1998) |
| rete vasculosum articulare | A vascular rete in the neighborhood of a joint, where such arrangements are common, enabling a collateral circulation by which blood will be supplied distal to the joint regardless of compromises resulting from joint position. Synonym: circulus articularis vasculosus, rete vasculosum articulare, articular network. (05 Mar 2000) |
| rete venosum dorsale manus | A superficial network of veins on the dorsum of the hand emptying into the cephalic and the basilic veins. Synonym: rete venosum dorsale manus. (05 Mar 2000) |
| rete venosum dorsale pedis | A superficial network of fine veins on the dorsum of the foot. Synonym: rete venosum dorsale pedis. (05 Mar 2000) |
| rete venosum plantare | A fine superficial venous network in the sole of the foot. Synonym: rete venosum plantare. (05 Mar 2000) |
| retene | <chemistry> A white crystalline hydrocarbon, polymeric with benzene. It is extracted from pine tar, and is also found in certain fossil resins. Origin: Gr. Pine resin. Source: Websters Dictionary (01 Mar 1998) |
| retention | 1. The persistent keeping within the body of matters normally excreted. 2. In cavity preparation, the prevention of displacement of a restoration. 3. <dentistry> The period during which the patient is wearing an appliance to maintain and stabilise the teeth in the position into which they were moved. 4. <psychology> The persistence to perform a learned behaviour (facts or experiences) after an interval has elapsed in which there has been no performance or practice of the behaviour. Origin: L. Retentio, from retentare = to hold firmly back (18 Nov 1997) |
| retention area | An area of a tooth provided during its preparation for restoration that will aid in holding the restoration in place. See: retention groove, retention point. (05 Mar 2000) |
| retention arm | A flexible segment of a removable partial denture that engages an undercut on an abutment and is designed to retain the denture. (05 Mar 2000) |