fraction /frac·tion/ (frak´shun)
fraction
1. a portion of something larger.
2. in chemistry, one of the separable constituents of a substance.frac´tional
ejection fraction the proportion of the volume of blood in the ventricles at the end of diastole that is ejected during systole; it is the stroke volume divided by the end-diastolic volume, often expressed as a percentage. It is normally 65 ± 8 per cent; lower values indicate ventricular dysfunction.
plasma protein fraction a preparation of serum albumin and globulin obtained by fractionating source blood, plasma, or serum from healthy human donors; used as a blood volume supporter.
frac·tion (fr k sh n)n. 1. An expression that indicates the quotient of two quantities. 2. A chemical component separated by fractionation. 3. A disconnected piece; a fragment. 4. An aliquot portion or any portion. |
fraction
size expressed as a relative part of a unit.
attributable fraction
the proportion of disease in the exposed group which is caused by the factor.
fraction
A part of a whole. See Ejection fraction, Plasma protein fraction, Purified protein fraction, S phase fraction, Volume fraction.
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