| revertant | In microbial genetics, a mutant that has reverted to its former genotype (true reversion) or to the original phenotype by means of a suppressor mutation. Origin: L. Re-vertans, pros. P. Of re-verto, to turn back (05 Mar 2000) |
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| flat revertant | <cell biology> Variant of a malignant transformed animal tissue cell in which the characteristic high saturation density and piled up morphology have reverted to the flatter morphology associated with nontransformed cells. (18 Nov 1997) |
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