| MAS | magic angle spinning; Manifest Anxiety Scale; maximum average score; McCune-Albright syndrome; mecon... |
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| NAG | N-acetyl-D-glucosaminidase; narrow-angle glaucoma; nonagglutinable |
| OAG | open angle glaucoma |
| PASA | para-aminosalicylic acid; primary acquired sideroblastic anemia; proximal articular set angle |
| POAG | primary open-angle glaucoma |
| Angle's classification of malocclusion | A classification of different types of malocclusion, based on the mesiodistal relationship of the permanent molars upon their eruption and locking, and comprised of three classes; Class I: normal relationship of the jaws, wherein the mesiobuccal cusp of the maxillary first molar occludes in the buccal groove of the mandibular first permanent molar; Class II: distal relationship of the mandible, wherein the distobuccal cusp of the maxillary first permanent molar occludes in the buccal groove of the mandibular first molar, and further classified as Division 1, labioversion of maxillary incisor teeth, and Division 2, linguoversion of maxillary central incisors, both of which may be unilateral conditions; Class III: mesial relationship of the mandible, wherein the mesiobuccal cusp of the maxillary first molar occludes in the embrasure between the mandibular first and second permanent molars, further classified as a unilateral condition. (05 Mar 2000) |
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| anorectal angle | The angle formed by the junction of the rectum with the anus; may be important in maintenance of continence. Synonym: perineal flexure of rectum. (05 Mar 2000) |
| apical angle | The angle between two plane surfaces of a prism. Synonym: refracting angle of a prism. (05 Mar 2000) |
| axial angle | An angle formed by two surfaces of a body, the line of union of which is parallel with its axis; the axial angle's of a tooth are the distobuccal, distolabial, distolingual, mesiobuccal, mesiolabial, and mesiolingual. (05 Mar 2000) |
| basilar angle | An angle formed by the intersection at the basion of lines coming from the nasal spine and the nasal point. (05 Mar 2000) |
| Bennett angle | The angle formed by the sagittal plane and the path of the advancing condyle during lateral mandibular movement as viewed in the horizontal plane. (05 Mar 2000) |
| beta angle | The angle formed by a line connecting the bregma and hormion meeting the radius fixus. (05 Mar 2000) |
| biorbital angle | An angle formed by the meeting of the axes of the orbits. (05 Mar 2000) |
| bond angle | This refers to the angle formed between two nuclei which are linked together. (09 Oct 1997) |
| brewster's angle | <physics> The angle of incidence at which electromagnetic waves reflected from a dielectric medium are completely polarized perpendicular to the plane of incidence, the component polarized parallel to the plane of incidence is completely transmitted. (09 Oct 1997) |
| Broca's angle | More specifically see: Broca's basilar angle, Broca's facial angle, occipital angle of parietal bone. (05 Mar 2000) |
| Broca's basilar angle | The angle formed at the basion of lines drawn from the nasion and the alveolar point. Synonym: Broca's angles. (05 Mar 2000) |
| Broca's facial angle | The angle formed by the intersection at the biauricular axis of lines drawn from the supraorbital point and the alveolar point. Synonym: Broca's angles. (05 Mar 2000) |
| bucco-occlusal angle | The line of junction of the buccal and occlusal surfaces of a tooth. (05 Mar 2000) |
| cardiodiaphragmatic angle | The angle between the heart and the diaphragm at either lateral end of the cardiac projection on imaging (usually the chest X-ray film). The right cardiophrenic angle is normally indistinguishable from the cardiohepatic angle radiographically. Synonym: cardiodiaphragmatic angle, phrenopericardial angle. (05 Mar 2000) |