| mesial | <dentistry> Forward or front. For example your cuspid is medial to you bicuspid. The medial surface of your bicuspid is the part of the bicuspid closest to your cuspid. (08 Jan 1998) |
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| mesial angle | The angle formed by the meeting of the mesial with the labial (or buccal) or lingual surface of a tooth. (05 Mar 2000) |
| mesial caries | Caries on the tooth surface that is directed toward the median plane of the dental arch. (05 Mar 2000) |
| mesial displacement | Malposition of a tooth mesial to normal, in an anterior direction following the curvature of the dental arch. Synonym: mesial displacement, mesioplacement. (05 Mar 2000) |
| mesial occlusion | Occlusion in which the mandibular teeth articulate with the maxillary teeth in a position anterior to normal. Synonym: anterior occlusion, mesio-occlusion. Synonym: mesioclusion. (05 Mar 2000) |
| mesial surface of tooth | The contact surface of a tooth that is directed toward the median plane of the dental arch; opposite to the facies distalis dentis. Synonym: facies mesialis dentis. (05 Mar 2000) |
| abdominal cavity | <anatomy> That portion of the body extending from beneath the diaphragm down to the pelvis. It contains all the abdominal organs. (27 Sep 1997) |
| abdominopelvic cavity | Abdominal cavity plus pelvic cavity. (05 Mar 2000) |
| amniotic cavity | The fluid-filled cavity inside the amnion which contains the developing embryo. (05 Mar 2000) |
| anterior wall of tympanic cavity | It contains the carotid canal and the opening of the auditory tube. Synonym: paries caroticus cavi tympani, anterior wall of middle ear, carotid wall of middle ear. (05 Mar 2000) |
| articular cavity | A joint cavity, the potential space bounded by the synovial membrane and articular cartilages of all synovial joints. Normally, the articular cavity contains only sufficient synovial fluid to lubricate the internal surfaces. Synonym: cavitas articularis, cavum articulare. (05 Mar 2000) |
| axillary cavity | <anatomy> The underarm area. (16 Dec 1997) |
| body cavity | The collective visceral cavity of the trunk (thoracic cavity plus abdominopelvic cavity), bounded by the superior thoracic aperture above, the pelvic floor below, and the body walls (parietes) in between. Synonym: celom, celoma, coelom. (05 Mar 2000) |
| buccal cavity | That part of the mouth bounded anteriorly and laterally by the lips and the cheeks, posteriorly and medially by the teeth and/or gums, and above and below by the reflections of the mucosa from the lips and cheeks to the gums. Synonym: vestibulum oris, buccal cavity, vestibule of mouth. (05 Mar 2000) |
| cavity | <anatomy> A hollow place or space or a potential space, within the body or in one of its organs, it may be normal or pathological. Origin: L. Cavitas (18 Nov 1997) |