See Also: phototaxis(medicine)
phototaxis(dictionary)

phototaxis (iou)



phototaxis noun. . L19.
[from PHOTO- + -TAXIS.]
Biology. The bodily movement or orientation of a motile organism in response to light; an instance of this. Also = PHOTOTROPISM 1.
phototactic adjective exhibiting or characterized by phototaxis L19.
phototactically adverb E20.