Liberal Dictionary English Dictionary
noun Biology.
- oriented movement toward or away from a chemical stimulus.
noun
- the movement of a microorganism or cell in response to a chemical stimulus
1891, coined in German, 1888, by German botanist Wilhelm Pfeffer (1845-1920) from chemo- + Greek taxis “arrangement” (see taxidermy).
n.
- The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus.chemotropism
- The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus. Bacteria exhibit chemotaxis when they move toward a source of nutrients.