1. An orientation response to touch or a contact stimulus. 2. The orientation of an organism in response to a mechanical displacement. 3. Growth curvature in response to a contact stimulus found in clinging plant organs. 4. A tendency of an organism or part of an organism to bend or to turn in response to a touch stimulus; such as, a vine coiling around a string support.
1. An orientation response to touch or a contact stimulus.
2. The orientation of an organism in response to a mechanical displacement.
3. Growth curvature in response to a contact stimulus found in clinging plant organs.
4. A tendency of an organism or part of an organism to bend or to turn in response to a touch stimulus; such as, a vine coiling around a string support.