| asbestoid | Having a crystalline appearance like asbestos. Synonym: asbestoid. Origin: G. Amianthus, asbestos (05 Mar 2000) |
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| asbestos | <chemical> A fibrous incombustible mineral known to cause fibrosis and scarring in the lungs. Also a known carcinogenic material (can cause lung cancer, mesothelioma). (27 Sep 1997) |
| asbestos bodies | Ferruginous body's with asbestos fibres as a core; a histologic hallmark of exposure to asbestos. (05 Mar 2000) |
| asbestos corn | A granulomatous or hyperkeratotic lesion of the skin at the site of deposit of asbestos particles. Synonym: asbestos wart. (05 Mar 2000) |
| asbestos liner | A layer of asbestos used to line a dental casting ring so that during the heating and expansion of the investment the compression of the liner will free the investment from the restraint of the ring. (05 Mar 2000) |
| asbestos lung disease | <radiology> Pleural plaques, earliest finding, may be only evidence, parietal pleura, 15-20 yrs after exposure, calcified after ca. 30 yrs, asbestosis, interstitial lung disease, perihilar regions to lung bases, shaggy heart, no cavitation or progressive massive fibrosis as in silicosis, crocidolite (blue) form most carcinogenic, associated with: malignant pleural mesothelioma, peritoneal mesothelioma, GI-tract malignancy (12 Dec 1998) |
| asbestos wart | A granulomatous or hyperkeratotic lesion of the skin at the site of deposit of asbestos particles. Synonym: asbestos wart. (05 Mar 2000) |
| asbestos, amosite | <chemical> Asbestos, grunerite. A monoclinic amphibole form of asbestos having long fibres and a high iron content. It is used in insulation. Pharmacological action: carcinogens. Chemical name: Asbestos, grunerite (12 Dec 1998) |
| asbestos, amphibole | <chemical> A class of asbestos that includes silicates of magnesium, iron, calcium, and sodium. The fibres are generally brittle and cannot be spun, but are more resistant to chemicals and heat than asbestos, serpentine. Pharmacological action: carcinogens. (12 Dec 1998) |
| asbestos, crocidolite | <chemical> Crocidolite. A lavender, acid-resistant asbestos. Pharmacological action: carcinogens. Chemical name: Crocidolite (12 Dec 1998) |
| asbestos, serpentine | <chemical> A type of asbestos that occurs in nature as the dihydrate of magnesium silicate. It exists in two forms: antigorite, a plated variety, and chrysotile, a fibrous variety. The latter makes up 95% of all asbestos products. Pharmacological action: carcinogens. (12 Dec 1998) |
| asbestosis | <chest medicine> Fibrosis of the lung as a result of the chronic inhalation of asbestos fibres. The needle like asbestos fibres are phagocytosed by alveolar macrophages but burst the phagosome (phagocytic vesicle) and kill the macrophage and the cycle is repeated. Mesothelioma, a rare tumour of the mesothelial lining of the pleura, is associated with intense chronic exposure to asbestos dust, particularly that of crocidolite asbestos. (18 Nov 1997) |
| asbolin | <chemistry> A peculiar acrid and bitter oil, obtained from wood soot. Origin: Gr. Soot. Source: Websters Dictionary (01 Mar 1998) |