| LMR | left medial rectus [muscle]; localized magnetic resonance; lymphocytic meningpolyradiculitis |
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| MBFC | medial brachial fascial compartment |
| MBH | medial basal hypothalamus |
| MCC | mean corpuscular hemoglobin concentration; medial cell column; Medical Council of Canada; metacerebr... |
| MCL | maximum containment laboratory; medial collateral ligament; midclavicular line; midcostal line; mini... |
| angle of mandible | <anatomy> The angle formed by the lower margin of the body and the posterior margin of the ramus of the mandible. Synonym: angulus mandibulae, angle of jaw. (05 Mar 2000) |
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| angle of mouth | <anatomy> The lateral limit of the oral fissure. See: labial commissure. Synonym: angulus oris. (05 Mar 2000) |
| angle of polarization | <optics> The angle of incidence at which the reflected light is all polarised. (05 Mar 2000) |
| angle of reflection | <optics> The angle that a ray reflected from a surface makes with a line drawn perpendicular to this surface. It is equal to the angle of incidence. (05 Mar 2000) |
| angle of refraction | <optics> The angle that a ray leaving a refracting medium makes with a line drawn perpendicular to the surface of this medium. (05 Mar 2000) |
| angle of repose | The maximum angle of slope (measured from horizontal plane) at which loose, cohesionless material will come to rest on a pile of similar material. (09 Oct 1997) |
| angle of torsion | The amount of rotation of a long bone along its axis or between two axes, measured in degrees. (05 Mar 2000) |
| 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) |
| 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) |