You searched for: “rheotactic
rheotactic
This entry is located in the following unit: rheo-, rhea-, rhe-, rhy- (page 3)
rheotaxis, rheotactic
The orientation of an organism in a stream of liquid or air current, with its long axis parallel with the direction of fluid flow.

Negative rheotaxis refers to the movement of the organism in the same direction as that of the liquid (current); positive rheotaxis refers to the movement of the organism in the opposite direction to that of the liquid or current.