| inducer | <molecular biology> An extracellular molecule that enters a cell and initiates transcriptionof a gene or operon. (09 Oct 1997) |
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| inducer cell | <cell biology> Cells that induce other nearby cells to differentiate in specified pathways. Perhaps the distinction should be made, as of old, between those cells that evoke a predetermined pathway of differentiation in the target cells and those cells that can actually induce new and unexpected differentiations. (18 Nov 1997) |