rheotropism

rheotropism
rheotropic /ree'euh trop"ik, -troh"pik/, adj.
/ree o"treuh piz'euhm/, n.
the effect of a current of water upon the direction of plant growth.
[1885-90; RHEO- + -TROPISM]

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Universalium. 2010.

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  • rheotropism — [rē ät′rə piz΄əm] n. [ RHEO + TROPISM] the tendency of an organism, esp. a plant, to respond to the stimulus of a current of water, air, etc. by some change in the direction of growth rheotropic [rē΄ə träp′ik] adj …   English World dictionary

  • rheotropism — rēˈä.trəˌpizəm noun Etymology: International Scientific Vocabulary rheo + tropism : a tropism in which mechanical stimulation by a stream of fluid (as water) is the orienting factor many motile animals … exhibit either positive or negative… …   Useful english dictionary

  • rheotropism — A movement contrary to the motion of a current, involving part of an organism, rather than the organism as a whole, as in rheotaxis. [rheo + G. tropos, a turning] * * * rhe·ot·ro·pism rē ä trə .piz əm n a tropism in which mechanical stimulation… …   Medical dictionary

  • rheotropism — n. influence of a current of water on the direction of plant growth (Biology) …   English contemporary dictionary

  • rheotropism — rhe·ot·ro·pism …   English syllables

  • rheotropism — /riˈɒtrəpɪzəm/ (say ree otruhpizuhm) noun the effect of a current of water upon the direction of plant growth …  

  • rheotropic — |rēə.|träpik adjective Etymology: rheotropism + ic : relating to or exhibiting rheotropism * * * rheotropˈic adjective • • • Main Entry: ↑rheo …   Useful english dictionary

  • rheotaxis — n.; pl. taxes [Gr. rheein, to flow; taxis, arrangement] Tactic response due to stimulation from moving fluid; rheotropism. a. Positive rheotaxis: migrating against the current of moving fluid. b. Negative rheotaxis: Moving with the fluid;… …   Dictionary of invertebrate zoology

  • Optomotor response — The optomotor response is an innate behaviour common to fish[1] and all insects. It serves for course stabilization during free locomotion through an involuntary displacement from a straight course.[2] The purpose of this behaviour is to regain… …   Wikipedia

  • ρεοτροπισμός — ο, Ν βιολ. κινητική αντίδραση που προκαλείται και κατευθύνεται από τη διεύθυνση τού ρεύματος στα υδρόβια ζώα και διακρίνεται σε θετικό, όταν ένα ζώο ακολουθεί την κατεύθυνση τού ρεύματος, και σε αρνητικό, όταν ανεβαίνει αντίθετα στο ρεύμα.… …   Dictionary of Greek

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