| hot spleen | <radiology> Decreased liver uptake, liver disease (e.g., cirrhosis), shunting of portal venous blood, increased splenic uptake, haematopoietic disease, septicaemia, rheumatoid disorders, immunostimulation (tumour, Aldomet, IL-2) see: liver-spleen scan (12 Dec 1998) |
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| hot spot | <molecular biology> A particular area of DNA which is especially prone to spontaneous mutations or recombinations. (09 Oct 1997) |
| hot thyroid nodule | <radiology> Almost always hyperfunctioning adenoma, vast majority benign, up to 50% are autonomous see also: thyroid carcinoma, cold thyroid nodule (12 Dec 1998) |
| American Red Cross | The national Red Cross society of the United States, established by Congress to assist in caring for the sick and wounded, serving as a communications link between members of the U.S. Armed forces and their families, conducting disaster relief and prevention programs, and furnishing other humanitarian services, the largest of which is a network of regional blood centres providing blood and blood products. (05 Mar 2000) |
| anatomy, cross-sectional | Descriptive anatomy based on three-dimensional imaging of the body, organs, and structures using a series of computer multiplane sections, displayed by transverse, coronal, and sagittal analyses. It is essential to accurate interpretation by the radiologist of such techniques as ultrasonic diagnosis, magnetic resonance imaging, and computed tomography. (12 Dec 1998) |
| back cross | <genetics> A crossing of a heterozygous organism and one of its homozygous parents. (09 Oct 1997) |
| blue cross | A prepaid health insurance plan for hospital costs and related services. It usually excludes physicians' services (which are covered under blue shield). (12 Dec 1998) |
| red cross | An international agency providing various humanitarian services. (12 Dec 1998) |
| collision cross-section | <radiobiology> Effective surface area of a particle when it collides with another, describes probability of collisions between the two particles. (09 Oct 1997) |
| cross | 1. Any figure in the shape of a cross formed by two intersecting lines. Synonym: crux. Synonym: crux of heart. 3. A method of hybridization or the hybrid so produced. Origin: F. Croix, L. Crux (05 Mar 2000) |
| cross agglutination | Agglutination by antibodies specific for minor (group) antigens common to several microorganisms, each of which possesses its own major specific antigen. Synonym: cross agglutination. (05 Mar 2000) |
| cross circulation | The circulation in a portion of the body of one individual of blood supplied from another individual. (12 Dec 1998) |
| cross contamination | <dentistry> Passing bacteria or viruses indirectly from one patient to another through the use of improper sterilisation procedures, unclean instruments, or recycling of products. (08 Jan 1998) |
| cross-cultural comparison | Comparison of various psychological, sociological, or cultural factors in order to assess the similarities or diversities occurring in two or more different cultures or societies. (12 Dec 1998) |
| cross-cultural psychiatry | A field of psychiatry with interest in the study of psychological and psychiatric phenomena as differentially expressed in the cultures of different countries. (05 Mar 2000) |