noun Biology.

  1. oriented growth of an organism in response to mechanical contact, as a plant tendril coiling around a string support.


  1. the directional growth of a plant, in response to the stimulus of direct contactAlso called: haptotropism, stereotropism

n.1900, from thigmo-, comb. form meaning “touch,” from Greek thigma “touch” + tropism. n.

  1. The turning or bending response of an organism or part of an organism upon direct contact with a solid surface or object.stereotropism

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