rheotaxis /rheo·tax·is/ (re″o-tak´sis) the orientation of an organism in a stream of liquid, with its long axis parallel with the direction of flow, designated negative (moving in the same direction) or positive (moving in the opposite direction).
rhe·o·tax·is (r   -t k s s)n. Movement of an organism in response to a current of fluid or air. |
rheotaxis
orientation of an organism in a stream of liquid, with its long axis parallel with the direction of flow, designated negative (moving in the same direction) or positive (moving in the opposite direction).
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