| CV | cardiac volume; cardiovascular; carotenoid vesicle; cell volume; central venous; cephalic vein; cere... |
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| CVD | cardiovascular disease; cerebrovascular disease; collagen vascular disease; color-vision-deviant |
| D&N | distance and near [vision] |
| DV | dependent variable; diagnostic variable; difference in volume; digital vibration; dilute volume; dis... |
| DVIU | direct-vision internal urethrotomy |
| indirect nuclear division | <cell biology> A method of indirect division of a cell, consisting of a complex of various processes, by means of which the two daughter nuclei normally receive identical complements of the number of chromosomes characteristic of the somatic cells of the species. Mitosis, the process by which the body grows and replaces cells, is divided into four phases. 1. Prophase: formation of paired chromosomes, disappearance of nuclear membrane, appearance of the achromatic spindle, formation of polar bodies. 2. Metaphase: arrangement of chromosomes in the equatorial plane of the central spindle to form the monaster. Chromosomes separate into exactly similar halves. 3. Anaphase: the two groups of daughter chromosomes separate and move along the fibres of the central spindle, each toward one of the asters, forming the diaster. 4. Telophase: the daughter chromosomes resolve themselves into a reticulum and the daughter nuclei are formed, the cytoplasm divides, forming two complete daughter cells. NOTE: the term mitosis is used interchangeably with cell division, but strictly speaking it refers to nuclear division, whereas cytokinesis refers to division of the cytoplasm. In some cells, as in many fungi and the fertilized eggs of many insects, nuclear division occurs within the cell unaccompanied by division of the cytoplasm and formation of daughter cells. (13 Nov 1997) |
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| indirect ophthalmoscope | <instrument> An instrument designed to visualise the interior of the eye, with the instrument at arm's length from the subject's eye and the observer viewing an inverted image through a convex lens located between the instrument and the subject's eye. (05 Mar 2000) |
| indirect ophthalmoscopy | Ophthalmoscopy performed with an indirect ophthalmoscope. (05 Mar 2000) |
| indirect placentography | An obsolete term for radiographic determination of the presence of placenta previa by estimating the distance between the presenting foetal part and the bladder filled with contrast medium. (05 Mar 2000) |
| indirect pulp capping | The application of a suspension of calcium hydroxide to a thin layer of dentin overlying the pulp (near exposure) in order to stimulate secondary dentin formation and protect the pulp. (05 Mar 2000) |
| indirect pupillary reaction | Contraction of the pupil of the fellow eye in consensus with the pupil of the illuminated eye. Synonym: consensual light reflex, indirect pupillary reaction. (05 Mar 2000) |
| indirect rays | X-ray's generated at a surface other than the anode target. (05 Mar 2000) |
| indirect reacting bilirubin | The fraction of serum bilirubin which has not been conjugated with glucuronic acid in the liver cell; so called because it reacts with the Ehrlich diazo reagent only when alcohol is added; increased levels are found in hepatic disease and haemolytic conditions. Synonym: unconjugated bilirubin. (05 Mar 2000) |
| indirect retainer | A part of a removable partial denture which assists the direct retainer's in preventing occlusal displacement of the distal extension bases by functioning through lever action on the opposite side of the fulcrum line. (05 Mar 2000) |
| indirect retention | Retention obtained in a removable partial denture through the use of indirect retainers. (05 Mar 2000) |
| indirect technique | indirect method for making inlays |
| indirect transfusion | Transfusion into a patient of blood previously obtained from a donor and stored in a suitable container. Synonym: mediate transfusion. (05 Mar 2000) |
| indirect transmission | <epidemiology> Transmission of a parasite through an indirect life cycle. (05 Dec 1998) |
| fluorescent antibody technique, indirect | A form of fluorescent antibody technique commonly used to detect serum antibodies and immune complexes in tissues and microorganisms in specimens from patients with infectious diseases. The technique involves formation of an antigen-antibody complex which is labelled with fluorescein-conjugated anti-immunoglobulin antibody. (12 Dec 1998) |
| achromatic vision | A severe congenital deficiency in colour perception, often associated with nystagmus and reduced visual acuity. Synonym: achromatic vision, monochromasia, monochromasy, monochromatism. Origin: G. A-priv. + chroma, colour, + opsis, vision (05 Mar 2000) |