discoloration

  • 51red tide — a brownish red discoloration of marine waters caused by the presence of enormous numbers of certain microscopic flagellates, esp. the dinoflagellates, that often produce a potent neurotoxin that accumulates in the tissues of shellfish, making… …

    Universalium

  • 52cardiovascular disease — Introduction       any of the diseases, whether congenital or acquired, of the heart and blood vessels (blood vessel). Among the most important are atherosclerosis, rheumatic heart disease, and vascular inflammation. Cardiovascular diseases are a …

    Universalium

  • 53digestive system disease — Introduction       any of the diseases that affect the human digestive tract. Such disorders may affect the esophagus, stomach, small intestine, large intestine (colon), pancreas, liver, or biliary tract. A prevalent disorder of the digestive… …

    Universalium

  • 54Bruise — A bruise or "contusion" is an traumatic injury of the soft tissues which results in breakage of the local capillaries and leakage of red blood cells. In the skin it can be seen as a reddish purple discoloration that does not blanch when …

    Medical dictionary

  • 55Sign — Any abnormality that indicates a disease process, such as a change in appearance, sensation, or function, that is observed by a physician when evaluating a patient. * * * 1. Any abnormality indicative of disease, discoverable on examination of… …

    Medical dictionary

  • 56argyria — A slate gray or bluish discoloration of the skin and deep tissues, due to the deposit of insoluble albuminate of silver, occurring after the medicinal administration for a long period of a soluble silver salt; formerly fairly common from use of… …

    Medical dictionary

  • 57erythrodontia — Reddish discoloration of the teeth, as may occur in porphyria. [erythro + G. odous, tooth] * * * eryth·ro·don·tia dän ch(ē )ə n discoloration of the teeth by red or reddish brown pigmentation * * * eryth·ro·don·tia (ə rith″ro… …

    Medical dictionary

  • 58stain — 1. To discolor. 2. To color; to dye. 3. A discoloration. 4. A dye used in histologic and bacteriologic technique. 5. A procedure in which a dye or combination of dyes and reagents is used to color the constituents of cells and tissues. For… …

    Medical dictionary

  • 59xanthochromia — The occurrence of patches of yellow color in the skin, resembling xanthoma, but without the nodules or plates. SYN: xanthoderma (1), yellow disease, yellow skin (1). [xantho + G. chroma, color] * * * xan·tho·chro·mia .zan thə krō mē ə n… …

    Medical dictionary

  • 60iPhone 4 — iPhone 4 …

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