| MMR | 1) Measles, Mumps, Rubella; 홍역, 멈프스, 풍진 2) Mass Miniature Radiography... |
|---|---|
| PCMV | Parietal Cell Mass Vagotomy |
| ABM | adjusted body mass; alveolar basement membrane; autologous bone marrow |
| amu | atomic mass unit |
| ASP | abnormal spinal posture; acute symmetric polyarthritis; African swine pox; aged substrate plasma; al... |
| Hill, Lucius | <person> U.S. Thoracic surgeon, *1921. See: Hill operation. (05 Mar 2000) |
|---|---|
| Hill operation | Repair of hiatus hernia; narrowing the oesophagogastric junction and attaching it to the right medial arcuate ligament. (05 Mar 2000) |
| hill plot | A method which is used to find out how many binding sites of a particular type are present on a given protein molecule. The Hill plot does this by graphical representation of the molecule. (09 Oct 1997) |
| Hill reaction | <plant biology> Reaction, first demonstrated by Robert Hill in 1939, in which illuminated chloroplasts evolve oxygen when incubated in the presence of an artificial electron acceptor (e.g. Ferricyanide). The reaction is a property of photosystem II. (11 Jan 1998) |
| Hill, Robert | <person> British plant physiologist, *1899. See: Hill reaction. (05 Mar 2000) |
| hill-sachs deformity | <radiology> Indentation or groove on posterolateral aspect of humeral head, probably due to compression of humeral head on posterior lip of glenoid, suggests repeated or chronic anterior shoulder dislocation, may occur after one episode of dislocation associated with: Bankhart lesion of glenoid (12 Dec 1998) |
| Hill-Sachs lesion | An irregularity seen in the head of the humerus following dislocation of the shoulder; caused by impaction of the head of the humerus against the edge of the glenoid. (05 Mar 2000) |
| Hill's equation | The equation,y(1-y) = [S]n/Kd, where y is the fractional degree of saturation, [S] is the binding ligand concentration, n is the Hill coefficient, and Kd is the dissociation constant for the ligand. The Hill coefficient is a measure of the cooperativity of the protein; the larger the value, the higher the cooperativity. This coefficient cannot be higher than the number of binding sites. For the oxygen binding curve of haemoglobin, an association constant, Ka, is used and the equation becomes y/(1-y) = Ka[S]n. For human blood, n equals 2.5. Compare: Hill plot. (05 Mar 2000) |
| Hill, Sir Leonard Erskine | <person> English physiologist, 1866-1952. See: Hill's sign, Hill's phenomenon. (05 Mar 2000) |
| Hill's phenomenon | <clinical sign> In aortic insufficiency, greater systolic blood pressure in the legs than in the arms; normal arterial systolic pressure in the leg is 10 to 20 mm of Hg above that in the arm, whereas in aortic insufficiency the difference may be 60 to 100 mm of Hg. Synonym: Hill's phenomenon. (05 Mar 2000) |
| Hill's sign | <clinical sign> In aortic insufficiency, greater systolic blood pressure in the legs than in the arms; normal arterial systolic pressure in the leg is 10 to 20 mm of Hg above that in the arm, whereas in aortic insufficiency the difference may be 60 to 100 mm of Hg. Synonym: Hill's phenomenon. (05 Mar 2000) |
| adrenal mass | <radiology> Metastasis, most common (especially lung, melanoma), primary adenocarcinoma, large at diagnosis (greater than 5 cm), usually functional (increased corticosteroids most likely to be Cushing's), rapid growth, benign adrenal adenoma, with or without functional, nonfunctional occurs in 2-8% of population, diff from metastasis: MRI (metastasis bright on T2), biopsy, follow, pheochromocytoma, neuroblastoma, myelolipoma, cyst / pseudocyst see also: adrenal calcification, haemorrhage (12 Dec 1998) |
| apperceptive mass | The already existing knowledge base in a similar or related area with which the new perceptual material is articulated. (05 Mar 2000) |
| atomic mass | <chemistry, physics> The mass of an atom relative to other atoms. The present-day basis of the scale of atomic weights is carbon, the most common isotope of this element has arbitrarily been assigned an atomic weight of 12. The unit of the scale is 1/12 the weight of the carbon atom or roughly the mass of one proton or one neutron. The atomic weight of any element is approximately equal to the total number of protons and neutrons in is nucleus (16 Dec 1997) |
| atomic mass unit | <chemistry> One-twelfth the mass of a neutral atom of the most abundant isotope of carbon. (16 Dec 1997) |