| HL | hairline; hairy leukoplakia; half life; hearing level; hearing loss; heparin lock; histiocytic lymph... |
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| HMC | hand-mirror cell; health maintenance cooperative; heroin, morphine, and cocaine; histocompatibility ... |
| MHA | major histocompatibility antigen; May-Hegglin anomaly; Mental Health Association; methemalbumin; mic... |
| MHC | major histocompatibility complex; mental health care |
| MHR | major histocompatibility region; malignant hyperthermia resistance; maternal heart rate; maximal hea... |
| circulus arteriosus iridis minor | An arterial circle near the pupillary margin of the iris. Synonym: circulus arteriosus iridis minor. (05 Mar 2000) |
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| minor | 1. Inferior in bulk, degree, importance, etc.; less; smaller; of little account; as, minor divisions of a body. 2. Less by a semitone in interval or difference of pitch; as, a minor third. <medicine> Asia Minor The form of the minor scale is various. The strictly correct form has the third and sixth minor, with a semitone between the seventh and eighth, which involves an augmented second interval, or three semitones, between the sixth and seventh, as, 6/F, 7/G#, 8/A. But, for melodic purposes, both the sixth and the seventh are sometimes made major in the ascending, and minor in the descending, scale, thus: See Major. <logic> Minor term of syllogism, the subject of the conclusion. Origin: L, a comparative with no positive; akin to AS. Min small, G. Minder less, OHG. Minniro, a, min, adv, Icel. Minni, a, minnr, adv, Goth. Minniza, a, mins, adv, Ir. & Gael. Min small, tender, L. Minuere to lessen, Gr, Skr. Mi to damage. Cf. Minish, Minister, Minus, Minute. Source: Websters Dictionary (01 Mar 1998) |
| minor agglutinin | Immune agglutinin present in an antiserum in lesser concentration than the major agglutinin. Synonym: partial agglutinin. (05 Mar 2000) |
| minor amputation | Amputation of a hand or foot or any parts of either. (05 Mar 2000) |
| minor calices | The subdivisions of the major calices, varying in number from 7 to 13, which receive the renal papillae. Synonym: calices renales minores. (05 Mar 2000) |
| minor connector | The connecting link (tang) between the major connector or base of a partial denture and other units of the prosthesis, such as clasps, indirect retainers, and occlusal rests. (05 Mar 2000) |
| minor duodenal papilla | The site of the opening of the accessory pancreatic duct into the duodenum, located anterior to and slightly superior to the major papilla. Synonym: papilla duodeni minor, Santorini's minor caruncle. Nerve papilla, one of the papillae in the dermis containing a tactile corpuscle or other form of end organ. Synonym: neurothele. (05 Mar 2000) |
| minor fissure | The deep fissure that separates the upper and middle lobes of the right lung. Synonym: fissura horizontalis pulmonis dextri, horizontal fissure of right lung, minor fissure. (05 Mar 2000) |
| minor forceps | Frontal radiation of the corpus callosum; that part of the fibre radiation of the corpus callosum which bends forward toward the frontal pole of the cerebrum. Synonym: forceps minor, forceps anterior, frontal part of corpus callosum, pars frontalis corporis callosi. (05 Mar 2000) |
| minor hippocampus | The lower of two elevations on the medial wall of the posterior horn of the lateral ventricle of the brain, caused by the depth of the calcarine sulcus. Synonym: Haller's unguis, hippocampus minor, minor hippocampus, Morand's spur, unguis avis. (05 Mar 2000) |
| minor hypnosis | An induced state resembling normal sleep in which the subject is susceptible to suggestion, though not to the extent of catalepsy or somnambulism. (05 Mar 2000) |
| minor hysteria | A mild form of hysteria characterised chiefly by subjective pains, nervousness, undue sensitiveness, and sometimes episodes of emotional excitement, but without paralysis or other such symptoms. (05 Mar 2000) |
| minor lymphocyte stimulatory loci | Genetic loci responsible for the encoding of minor lymphocyte stimulatory antigens. There are at least two unlinked loci (in the mouse) and they appear to be separate from the major histocompatibility complex and minor histocompatibility loci. The mouse mammary tumour virus (see mammary tumour viruses, mouse) has the ability to integrate into these loci. The antigens induce strong T-cell proliferative responses in mixed lymphocyte reactions. (12 Dec 1998) |
| minor motor seizure | Old term for nonconvulsive seizure seen in patients with secondary generalised epilepsies. (05 Mar 2000) |
| minor operation | A surgical procedure of relatively slight extent and not in itself hazardous to life. (05 Mar 2000) |