| Scatchard plot | A method for analysing data for freely reversible ligand/receptor binding interactions. The graphical plot is: Bound ligand/Free ligand) against (Bound ligand), the slope gives the negative reciprocal of the binding affinity, the intercept on the x axis the number of receptors (Bound/Free becomes zero at infinite ligand concentration). The Scatchard plot is preferable to the Eadie Hoffstee plot for binding data because it is more dependent upon the values at high ligand concentration which will be the most reliable values. A nonlinear Scatchard plot is often taken to indicate heterogeneity of receptors, although this is not the only explanation possible. (18 Nov 1997) |
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| Scatchard, George | <person> U.S. Chemist and biochemist, 1892-1973. See: Scatchard plot. (05 Mar 2000) |
| scatemia | Intestinal autointoxication. Origin: scato-+ G. Haima, blood (05 Mar 2000) |
| scato- | Faeces. See: copro-, sterco-. Origin: G. Skor (skat-), excrement (05 Mar 2000) |
| scatologic | Pertaining to scatology. (05 Mar 2000) |
| scatology | 1. The scientific study and analysis of faeces, for physiologic and diagnostic purposes. Synonym: coprology. 2. The study relating to the psychiatric aspects of excrement or excremental (anal) function. Origin: scato-+ G. Logos, study (05 Mar 2000) |
| scatoma | Synonym: coproma. Origin: scato-+ G. -oma, tumour (05 Mar 2000) |
| scatophagy | Synonym: coprophagia. Origin: scato-+ G. Phago, to eat (05 Mar 2000) |
| scatoscopy | Examination of the faeces for purposes of diagnosis. Origin: scato-+ G. Skopeo, to view (05 Mar 2000) |
| scatter | Spread in irradiation away from its target. (16 Dec 1997) |
| scatter factor | A motility factor (motogen) isolated from conditioned medium in which human fibroblasts have been grown. It causes colonies of epithelial and endothelial cells, in culture, to separate into single cells that move apart i.e. They scatter. It has been shown to be identical to human hepatocyte growth factor, but it is not mitogenic for all cell types. (18 Nov 1997) |
| scattered | 1. Dispersed; dissipated; sprinkled, or loosely spread. 2. <botany> Irregular in position; having no regular order; as, scattered leaves. Scat"teredly, Scat"teredness. Source: Websters Dictionary (01 Mar 1998) |
| scattered radiation | Secondary radiation emitted from the interaction of X-rays with matter; generally lower in energy, with a directional distribution which depends on the energy of the incident radiation. Synonym: secondary radiation. (05 Mar 2000) |
| scattergram | Graphical display of distribution of two variables in relation to each other. Origin: scatter + G. Gramma, something written (05 Mar 2000) |
| scattering | <radiobiology> The deflection of one particle as a result of collisions with other particles or with waves. See: Elastic. (09 Oct 1997) |