| Roger-Anderson pin fixation appliance | An appliance used in extraoral fixation of mandibular fractures and prognathic corrections in which pins placed in the bone segments are joined by metal connecting rods. See: external pin fixation. (05 Mar 2000) |
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| rolling-pin | A cylindrical piece of wood or other material, with which paste or dough may be rolled out and reduced to a proper thickness. Source: Websters Dictionary (01 Mar 1998) |
| pin | To fasten with, or as with, a pin; to join; as, to pin a garment; to pin boards together. "Aa if she would pin her to her heart." To pin one's faith upon, to depend upon; to trust to. Origin: See Pin. <chemistry> To peen. 1. A piece of wood, metal, etc, generally cylindrical, used for fastening separate articles together, or as a support by which one article may be suspended from another; a peg; a bolt. "With pins of adamant And chains they made all fast." (Milton) 2. Especially, a small, pointed and headed piece of brass or other wire (commonly tinned), largely used for fastening clothes, attaching papers, etc. 3. Hence, a thing of small value; a trifle. "He . . . Did not care a pin for her." (Spectator) 4. That which resembles a pin in its form or use; as: A peg in musical instruments, for increasing or relaxing the tension of the strings. A linchpin. A rolling-pin. A clothespin. The tenon of a dovetail joint. 5. One of a row of pegs in the side of an ancient drinking cup to mark how much each man should drink. 6. The bull's eye, or center, of a target; hence, the center. "The very pin of his heart cleft." 7. Mood; humor. "In merry pin." 8. <medicine> Caligo. See Caligo. 9. An ornament, as a brooch or badge, fastened to the clothing by a pin; as, a Masonic pin. 10. The leg; as, to knock one off his pins. Banking pin, a drill with a central pin or projection to enter a hole, for enlarging the hole, or for sinking a recess for the head of a bolt, etc.; a counterbore. Pin grass. <botany> A small coil which revolves on a common pin and makes a wheel of yellow or coloured fire. Origin: OE. Pinne, AS. Pinn a pin, peg; cf. D. Pin, G. Pinne, Icel. Pinni, W. Pin, Gael. & Ir. Pinne; all fr. L. Pinna a pinnacle, pin, feather, perhaps orig. A different word from pinna feather. Cf. Fin of a fish, Pen a feather. Source: Websters Dictionary (01 Mar 1998) |
| pin amalgam | An amalgam restoration held in place largely by small metal rods protruding from holes drilled into tooth structure. (05 Mar 2000) |
| pin and ligature cutter | <dentistry> A special plier use to cur off arch wires, ligatures etc. (08 Jan 1998) |
| pin-eyed | <botany> Having the stigma visible at the throad of a gamopetalous corolla, while the stamens are concealed in the tube; said of dimorphous flowers. The opposite of thrum-eyed. Source: Websters Dictionary (01 Mar 1998) |
| pin implant | A type of implant usually rod-shaped, used in the area of the maxillary sinuses. (05 Mar 2000) |
| pin-tailed | <ornithology> Having a tapered tail, with the middle feathers longest; said of birds. Source: Websters Dictionary (01 Mar 1998) |
| Steinmann pin | A pin that is used to transfix bone for traction or fixation. (05 Mar 2000) |
| thorough-pin | <veterinary> A disease of the hock (sometimes of the knee) of a horse, caused by inflammation of the synovial membrane and a consequent excessive secretion of the synovial fluid. This is probably so called because there is synovial distention of the sheath of the flexor perforans tendon producing an oval swelling on each side of the leg, appearing somewhat as if a pin had been thrust through. Source: Websters Dictionary (21 Jun 2000) |
| external pin fixation | In oral surgery, stabilization of fractures of the mandible, maxilla, or zygoma by pins or screws drilled into the bony part through the overlying skin and connected by a metal bar. Pin fixation by replacing the rigid metal bar connector with an acrylic bar adapted at the time of reduction of the fracture. (05 Mar 2000) |
| sagittal split mandibular osteotomy | An intraoral surgical procedure for correction of retrognathism, apertognathia, and prognathism; the mandibular rami and posterior body are sectioned in the sagittal plane. (05 Mar 2000) |
| split | 1. To divide lengthwise; to separate from end to end, especially. By force; to divide in the direction of the grain layers; to rive; to cleave; as, to split a piece of timber or a board; to split a gem; to split a sheepskin. "Cold winter split the rocks in twain." (Dryden) 2. To burst; to rupture; to rend; to tear asunder. "A huge vessel of exceeding hard marble split asunder by congealed water." (Boyle) 3. To divide or break up into parts or divisions, as by discord; to separate into parts or parties, as a political party; to disunite. 4. <chemistry> To divide or separate into components; often used with up; as, to split up sugar into alcohol and carbonic acid. To split hairs, to make distinctions of useless nicety. Origin: Probably of Scand. Or Low german origin; cf. Dan. Splitte, LG. Splitten, OD. Splitten, spletten, D. Splijten, G. Spleissen, MHG. Splizen. Cf. Splice, Splint, Splinter. 1. Divided; cleft. 2. <botany> Divided deeply; cleft. Split pease, hulled pease split for making soup, etc. <machinery> Split pin, a pin with one end split so that it may be spread open to secure it in its place. Split pulley, a parting pulley. See Pulley. Split ring, a ring with overlapped or interlocked ends which may be sprung apart so that objects, as keys, may be strung upon the ring or removed from it. Split ticket, a ballot containing the names of only a portion of the candidates regularly nominated by one party, other names being substituted for those omitted. Source: Websters Dictionary (01 Mar 1998) |
| split brain | A brain in which the corpus callosum and usually the anterior and posterior commissures have been sectioned; usually to treat certain refractory epilepsies. (05 Mar 2000) |
| split cast method | A procedure for placing indexed casts on an articulator to facilitate their removal and replacement on the instrument, the procedure of checking the ability of an articulator to receive or be adjusted to a maxillomandibular relation record. Synonym: Needles' split cast method. (05 Mar 2000) |