| serum accelerator globulin | A substance in serum that accelerates the conversion of prothrombin to thrombin in the presence of thromboplastin and calcium; produced by the action of traces of thrombin upon plasma accelerator globulin. (05 Mar 2000) |
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| linear accelerator | <apparatus> A sophisticated external beam radiotherapy machine which has the capabilities of focussing irradiation (although not very finely). Acronym: LinAC (16 Dec 1997) |
| analog-digital conversion | The process of converting analog data such as continually measured voltage to discrete, digital form. (12 Dec 1998) |
| bed conversion | The reallocation of beds from one type of care service to another, as in converting acute care beds to long term care beds. (12 Dec 1998) |
| biochemical conversion process | The use of living organisms or their products to convert organic material to fuels. (05 Dec 1998) |
| gene conversion | <molecular biology> A phenomenon in which alleles are segregated in a 3:1 not 2:2 ratio in meiosis. May be a result of DNA polymerase switching templates and copying from the other homologous sequence or a result of mismatch repair (nucleotides being removed from one strand and replaced by repair synthesis using the other strand as template). (18 Nov 1997) |
| plasmin prothrombins conversion factor | <chemical> Heat- and storage-labile plasma glycoprotein which accelerates the conversion of prothrombin to thrombin in blood coagulation. Factor v accomplishes this by forming a complex with factor xa, phospholipid, and calcium (prothrombinase complex). Deficiency of factor v leads to owren's disease. Chemical name: Blood-coagulation factor V (12 Dec 1998) |
| conversion | An unconscious defense mechanism by which the anxiety that stems from intrapsychic conflict is converted and expressed in a symbolic somatic. Origin: L. Con = with, versio = turning (18 Nov 1997) |
| conversion disorder | A disorder whose predominant feature is a loss or alteration in physical functioning that suggests a physical disorder but that is actually a direct expression of a psychological conflict or need. (12 Dec 1998) |
| conversion electron | An internal conversion electron. (05 Mar 2000) |
| conversion hysteria | Hysteria characterised by the substitution, through psychic transformation, of physical signs or symptoms for anxiety; generally restricted to such major symptoms as blindness, deafness, and paralysis, or lesser ones such as blurred vision and numbness. Synonym: conversion hysteria neurosis, conversion neurosis, conversion reaction. (05 Mar 2000) |
| conversion hysteria neurosis | Hysteria characterised by the substitution, through psychic transformation, of physical signs or symptoms for anxiety; generally restricted to such major symptoms as blindness, deafness, and paralysis, or lesser ones such as blurred vision and numbness. Synonym: conversion hysteria neurosis, conversion neurosis, conversion reaction. (05 Mar 2000) |
| conversion neurosis | Hysteria characterised by the substitution, through psychic transformation, of physical signs or symptoms for anxiety; generally restricted to such major symptoms as blindness, deafness, and paralysis, or lesser ones such as blurred vision and numbness. Synonym: conversion hysteria neurosis, conversion neurosis, conversion reaction. (05 Mar 2000) |
| conversion reaction | A conversion of emotional stress or mental disturbance into a physical symptom. Examples include paralysis, blindness, inability to speak or another sudden debilitating problem for no reason evident through testing. (27 Sep 1997) |
| stand conversion | The conversion of a noncommercial stand of timber to a commercial stand. (05 Dec 1998) |