| orf | open reading frame |
|---|---|
| RT | radiologic technologist; radiotelemetry; radiotherapy; radium therapy; rapid tranquilization; reacti... |
| RU | radioulnar; rat unit; reading unit; residual urine; resin uptake; resistance unit; retrograde urogra... |
| SRD | service-related disability; Society for the Relief of Distress; Society for the Right to Die; sodium... |
| URF | unidentified reading frame; uterine relaxing factor |
| bar clasp arm | A clasp arm which has its origin in the denture base or major connector; it consists of the arm which traverses but does not contact the gingival structures, and a terminal end which approaches its contact with the tooth in a gingivo-occlusal direction. (05 Mar 2000) |
|---|---|
| bar clip attachments | Fixed bar joints or rigid bar units used for splinting abutments with removable sleeves or clips within the partial denture for supporting and/or retaining the prosthesis. Synonym: bar clip attachments. (05 Mar 2000) |
| bar joint denture | A complete denture that is supported by both soft tissue and natural teeth that have been altered so as to permit the denture to fit over them. The altered teeth may have been fitted with short or long copings, locking devices, or connecting bars. Synonym: bar joint denture, hybrid prosthesis, overdenture, telescopic denture. (05 Mar 2000) |
| bar of bladder | A fold of mucous membrane extending from the orifice of the ureter of one side to that of the other side. Synonym: plica interureterica, bar of bladder, Mercier's bar, plica ureterica, torus uretericus, ureteric fold. (05 Mar 2000) |
| bar screen | A screen made of parallel bars set 3/4" to 2" apart used to filter out large objects. (05 Dec 1998) |
| bar-sleeve attachments | Fixed bar joints or rigid bar units used for splinting abutments with removable sleeves or clips within the partial denture for supporting and/or retaining the prosthesis. Synonym: bar clip attachments. (05 Mar 2000) |
| palatal bar | A major connector which crosses the palate and unites two or more parts of a maxillary removable partial denture. (05 Mar 2000) |
| Passavant's bar | A prominence on the posterior wall of the naso-pharynx formed by contraction of the superior constrictor of the pharynx during swallowing. Synonym: Passavant's bar, Passavant's pad, Passavant's ridge. (05 Mar 2000) |
| median bar of Mercier | A prominent band of fibromuscular tissue involving the interureteric ridge or neck of the urinary bladder, occasionally resulting in urinary obstruction. (05 Mar 2000) |
| Mercier's bar | A fold of mucous membrane extending from the orifice of the ureter of one side to that of the other side. Synonym: plica interureterica, bar of bladder, Mercier's bar, plica ureterica, torus uretericus, ureteric fold. (05 Mar 2000) |
| continuous bar retainer | A metal bar, usually resting on lingual surfaces of teeth, to aid in their stabilization and to act as indirect retainer's. Synonym: continuous clasp. (05 Mar 2000) |
| prism bar | A graduated series of prism bar's mounted on a frame and used in ocular diagnosis. (05 Mar 2000) |
| sea-bar | <zoology> A tern. Source: Websters Dictionary (01 Mar 1998) |
| sternal bar | One of the transverse units of the developing sternum formed by the union of paired primordia. (05 Mar 2000) |
| occlusal rest bar | A minor connector used to attach an occlusal rest to a major part of a removable partial denture. (05 Mar 2000) |