| isodimorphic | Alternative term for isodimorphous. Origin: Iso- + dimorphic. Source: Websters Dictionary (01 Mar 1998) |
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| isodimorphism | Isomorphism between the two forms severally of two dimorphous substances. Source: Websters Dictionary (01 Mar 1998) |
| isodimorphous | Having the quality of isodimorphism. Origin: Iso- + dimorphous. Source: Websters Dictionary (01 Mar 1998) |
| isodiphasic complex | A diphasic complex whose positive and negative deflections are approximately equal. Synonym: equiphasic complex. (05 Mar 2000) |
| isodisomy | Remarkable situation where both chromosomes in a pair are from one parent and neither from the other. Isodisomy causes some birth defects and, we suspect, plays a role in cancer. Also called uniparental disomy. (12 Dec 1998) |
| isodulcit | A methylpentose present in a number of plant glycosides, free in poison sumac, in lipopolysaccharides of Enterobacteriaceae, and in rutinose (a disaccharide). Synonym: isodulcit. (05 Mar 2000) |
| isodulcite | <chemistry> A white, crystalline, sugarlike substance, obtained by the decomposition of certain glucosides, and intermediate in nature between the hexacid alcohols (ductile, mannite, etc) and the glucoses. Origin: Iso- + dulcite. Source: Websters Dictionary (01 Mar 1998) |
| isodynamic | Of, pertaining to, having, or denoting, equality of force. <physiology> Isodynamic foods, those foods that produce a similar amount of heat. <physics> Isodynamic lines, lines on the earth's surface connecting places at which the magnetic intensity is the same. Origin: Iso- + dynamic. Source: Websters Dictionary (01 Mar 1998) |
| isodynamic law | For energy purposes, the different foodstuffs may replace one another in accordance with their caloric values when burned in a calorimeter. (05 Mar 2000) |
| isodynamogenic | Synonym: isoenergetic. 2. Producing equal nerve force. Origin: iso-+ G. Dynamis, force, + -gen, producing (05 Mar 2000) |
| isoelectric | Of equal electrical potential. Compare: isoelectric point. Synonym: isopotential. Isoelectric focusing, electrophoresis of small molecules or macromolecules in a pH gradient. (05 Mar 2000) |
| isoelectric focusing | <technique> Electrophoresis in a stabilised pH gradient. High resolution method for separating molecules, especially proteins, that carry both positive and negative charges. Molecules migrate to the pH corresponding to their isoelectric point. The gradient is produced by electrophoresis of amphiphiles, heterogenous molecules giving a continuum of isoelectric points. Resolution is determined by the number of amphiphile species and the evenness of distribution of their isoelectric points. (18 Nov 1997) |
| isoelectric line | The baseline of the electrocardiogram. (05 Mar 2000) |
| isoelectric period | The period occurring in the electrocardiogram between the end of the S wave and the beginning of the T wave during which electrical forces are acting in directions such as to neutralise each other so that there is no difference in potential under the two electrodes. (05 Mar 2000) |
| isoelectric point | <biochemistry> The pH at which a protein carries no net charge. Below the isoelectric point proteins carry a net positive charge, above it a net negative charge. Due to a preponderance of weakly acid residues in almost all proteins, they are nearly all negatively charged at neutral pH. The isoelectric point is of significance in protein purification because it is the pH at which solubility is often minimal and at which mobility in an electrofocusing system is zero (and therefore the point at which the protein will accumulate). (18 Nov 1997) |