| cardiac histiocyte | A large mononuclear cell found in connective tissue of the heart wall in inflammatory conditions, especially in the Aschoff body. The ovoid nucleus contains a central chromatin mass appearing as a wavy bar in longitudinal section. Synonym: Anitschkow cell, Anitschkow myocyte, caterpillar cell. (05 Mar 2000) |
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| sea-blue histiocyte | A histiocyte containing cytoplasmic granules that stain bright blue with haematologic stains such as Wright-Giemsa; found in bone marrow and in the spleen, associated with hepatosplenomegaly and thrombocytopenic purpura and in other blood diseases. (05 Mar 2000) |
| sea-blue histiocyte disease | Splenomegaly and mild thrombocytopenia, with histiocytes in the bone marrow which contain cytoplasmic granules that stain bright blue; sometimes familial; perhaps a lipidosis; autosomal recessive inheritance. (05 Mar 2000) |
| sea-blue histiocyte syndrome | <syndrome> Rare disorder consisting of splenomegaly, mild purpura secondary to thrombocytopenia, and occasionally, hepatic cirrhosis associated with the appearance of numerous histiocytes in the spleen and bone marrow which stain a sea-blue colour. It is sometimes considered a variant of niemann-pick disease. (12 Dec 1998) |
| histiocyte | <pathology> Long lived resident macrophage found within tissues. (11 Jan 1998) |
| denture, partial, fixed | A partial denture attached to prepared natural teeth, roots, or implants by cementation. (12 Dec 1998) |
| denture, partial, fixed, resin-bonded | A commonly used prosthesis that results in a strong, permanent restoration. It consists of an electrolytically etched cast-metal retainer that is cemented (bonded), using resins, to adjacent teeth whose enamel was previously acid-treated (acid-etched). This type of bridgework is sometimes referred to as a maryland bridge. (12 Dec 1998) |
| fixed | 1. Securely placed or fastened; settled; established; firm; imovable; unalterable. 2. <chemistry> Stable; non-volatile. <chemistry> Fixed air, the fixed point about which any line of troops wheels. <astronomy> Fixed stars, such stars as always retain nearly the same apparent position and distance with respect to each other, thus distinguished from planets and comets. Source: Websters Dictionary (01 Mar 1998) |
| fixed alkali | Any alkali other than a weakly ionised one, like ammonia. (05 Mar 2000) |
| fixed alkaloid | A nonvolatile alkaloid. (05 Mar 2000) |
| fixed appliance | <dentistry> Any orthodontic component that is cemented or bonded to the teeth. (08 Jan 1998) |
| fixed bridge | A restoration of one or more missing teeth which cannot be readily removed by the patient or dentist; it is permanently attached to natural teeth or roots which furnish the primary support to the appliance. Synonym: bridge. (05 Mar 2000) |
| fixed contracture | Contracture, usually due to fibrosis within the muscle that persists whether the subject is conscious or unconscious. Synonym: fixed contracture. (05 Mar 2000) |
| fixed coupling | Where several premature beats are seen, the interval between each of them and the preceding normal beat is constant. Synonym: constant coupling. Variable coupling, where several extrasystoles are seen, the interval between each of them and the preceding sinus beat varies. (05 Mar 2000) |
| fixed dressing | A dressing stiffened with a substance that produces immobilization when it dries. (05 Mar 2000) |