| invariant | <mathematics> An invariable quantity; specifically, a function of the coefficients of one or more forms, which remains unaltered, when these undergo suitable linear transformations. Source: Websters Dictionary (01 Mar 1998) |
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| invariant chain | <chemical> Noncovalently associated with class II antigens, alpha and beta chain complex; involved in the regulation of malignant cell ia function; iip31 and iip33 were synthesized by using alternative initiator methionines Synonym: II igc, ia-associated invariant chain, II invariant glycoprotein complex, class II-associated invariant chain, IIp33, IIp31, clip peptide, ln-2 antigen, ln 2 antigen, cd74 antigen, II-key, II76-92 (05 Dec 1998) |
| invariant surface glycoprotein 100 | <chemical> A stage-specific invariant surface protein in trypanosoma brucei containing an internal, serine-rich, repetitive motif; amino acid sequence given in first source; genbank y14833 Synonym: isg-100 (05 Dec 1998) |
| adiabatic invariant | <radiobiology> Characteristic parameters which do not change as a physical system slowly evolves, the most commonly used one in plasma physics is the magnetic moment of a charged particle spiraling around a magnetic field line. (09 Oct 1997) |
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