English dictionary
chemotaxis
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Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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movement by a cell or organism in reaction to a chemical stimulus
Source: WordNet 3.0
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The sensitiveness exhibited by small free-swimming organisms, as bacteria, zoöspores of algæ, etc., to chemical substances held in solution. They may be attracted (<i>positive chemotaxis</i>) or repelled (<i>negative chemotaxis</i>).
Source: webster1913