| PASA | para-aminosalicylic acid; primary acquired sideroblastic anemia; proximal articular set angle |
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| POAG | primary open-angle glaucoma |
| RA | radioactive; ragocyte; ragweed antigen; rapidly adapting [receptors]; reactive arthritis; reciprocal... |
| SMART | simultaneous multiple angle reconstruction technique |
| truboFLASH | turbo fast low angle shot |
| lateral angle of uterus | The upper part of the side of the uterus at the point of its junction with the uterine tube. (05 Mar 2000) |
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| Frankfort-mandibular incisor angle | Any of several variously named and variously defined anatomical angle's that have been used to quantify facial protrusion, in dentistry, the angle formed by the intersection of the orbitomeatal (Frankfort) plane with the nasion-pogonion line (inner lower angle), which establishes the anteroposterior relation of the mandible to the upper face at the orbitomeatal plane. Synonym: Frankfort-mandibular incisor angle. (05 Mar 2000) |
| frontal angle of parietal bone | The anterior superior angle of the parietal bone. Synonym: angulus frontalis ossis parietalis. (05 Mar 2000) |
| limiting angle | The angle of incidence at which a ray of light, in passing between two media, changes from refraction to total reflection. Synonym: limiting angle. (05 Mar 2000) |
| line angle | In dentistry, the junction of two surfaces of the crown of a tooth, or of a tooth cavity (cavity line angle). (05 Mar 2000) |
| Louis' angle | The angle between the manubrium and the body of the sternum at the manubriosternal junction. Marks the level of the second costal cartilage (rib) for counting ribs or intercostal spaces. Denotes level of aortic arch, bifurcation of trachea, and T4/T5 intervertebral disc. Synonym: angulus sterni, Louis' angle, Ludwig's angle, manubriosternal junction. (05 Mar 2000) |
| Lovibond's angle | The angle made at the meeting of the proximal nail fold and the nail plate when viewed from the radial aspect; normally, less than 180 |
| Ludwig's angle | The angle between the manubrium and the body of the sternum at the manubriosternal junction. Marks the level of the second costal cartilage (rib) for counting ribs or intercostal spaces. Denotes level of aortic arch, bifurcation of trachea, and T4/T5 intervertebral disc. Synonym: angulus sterni, Louis' angle, Ludwig's angle, manubriosternal junction. (05 Mar 2000) |
| lumbosacral angle | The angle between the long axis of the lumbar part of the vertebral column and that of the sacrum. (05 Mar 2000) |