| MHC | Major Histocompatibility Complex |
|---|---|
| EMM | erythema multiforme major |
| HMC | hand-mirror cell; health maintenance cooperative; heroin, morphine, and cocaine; histocompatibility ... |
| MAC | MacConkey [broth]; major ambulatory category; malignancy-associated changes; maximum allowable conce... |
| MAD | major affective disorder; mandibulo-acral dysplasia; maximum allowable dose; methylandrostenediol; m... |
| annulus iridis major | The outer, broader of the two zones of the iris. Synonym: annulus iridis major. (05 Mar 2000) |
|---|---|
| aphthae major | A severe form of aphthae characterised by unusually numerous, large, deep, and frequent ulcers; healing may take as long as six weeks and results in scarring. Synonym: Mikulicz' aphthae, periadenitis mucosa necrotica recurrens, recurrent scarring aphthae, Sutton's disease. (05 Mar 2000) |
| arteria palatina major | <anatomy, artery> Anterior branch of descending palatine artery, supplying the gums and mucous membrane of the hard palate. Synonym: arteria palatina major. (05 Mar 2000) |
| camera oculi major | The space between the cornea anteriorly and the iris/pupil posteriorly, filled with a watery fluid (aqueous humor) and communicating through the pupil with the posterior chamber. Synonym: camera anterior bulbi, camera oculi anterior, camera oculi major. (05 Mar 2000) |
| canalis palatinus major | The canalis formed between the maxilla and palatine bones; it transmits the descending palatine artery and the greater palatine nerve. Synonym: canalis palatinus major, pterygopalatine canal. (05 Mar 2000) |
| variola major | <disease, virology> This acute viral disease once claimed a high mortality rate, but was officially announced as globally eradicated in 1979. This was due to who vaccination programs. Headache, vomiting and fever precede, the eruption of a widespread rash that is raised, vesicular and finally pustular. The eruption follows a set pattern of dissemination, commencing on the head and face. When the final stage is passed scars (pockmarks) are left to disfigure the skin. (27 Sep 1997) |
| major | Larger or greater in size of two similar structures. Origin: L. Comparative of magnus, great (05 Mar 2000) |
| major agglutinin | Immune agglutinin present in greatest quantity in an antiserum and evoked by the most dominant of a mosaic of antigens. Synonym: chief agglutinin. (05 Mar 2000) |
| major amblyoscope | <instrument> An amblyoscope in which intensity of illumination as well as targets may be varied. (05 Mar 2000) |
| major amputation | Amputation of the lower or upper extremity above the ankle or the wrist, respectively. (05 Mar 2000) |
| major calices | The primary subdivisions of the renal pelvis, usually two or three in number. Synonym: calices renales majores. (05 Mar 2000) |
| major connector | A plate or bar (lingual bar, palatal bar) used for the purpose of uniting partial denture bases. (05 Mar 2000) |
| major depression | A clinical syndrome that includes a persistent sad mood or loss of interest in activities that persists for at least 2 weeks in the absence of external precipitants. This should not be confused with a grief reaction (death of loved one). Features may include change in eating habits, insomnia, early morning wakening, lack of interest, depressed mood, fatigue and suicidal thoughts. (27 Sep 1997) |
| major duodenal papilla | Point of opening of the common bile duct and pancreatic duct into the duodenum; it is located posteriorly in the descending part of the duodenum. Synonym: papilla duodeni major, bile papilla, papilla of Vater, Santorini's major caruncle. (05 Mar 2000) |
| major epilepsy | tonic-clonic seizure |