photonasty

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photonasty [ˈfəʊtəʊˌnæstɪ]

n pl -ties

(Life Sciences & Allied Applications / Botany) a nastic movement in response to a change in light intensity

photonastic adj

photonasty

the tendency in certain plant species to respond to light by developing sufficient cellular force or growth on one side of an axis to change the form or position of the axis, as in the opening and closing of the flowers of four-o’clocks. Cf. thermonasty. — photonastic. adj.

See also: Plants

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Plants thermonasty			photolysis Photomagnetic Photomagnetism photomania photomap photomechanical photomechanical transfer photomechanics photometer photometric photometric brightness photometrical photometrically Photometrician photometrist photometry Photomezzotype photomicrograph photomicrography photomicroscope photomontage photomosaic photomultiplier photomural photon photonasty photonegative Photonephograph photoneutron photonics photonuclear photopathy photoperiod photoperiodicity photoperiodism photophilia photophilic photophilous photophily photophobia photophobic Photophone Photophonic Photophony photophore photophosphorylation photopia photopic vision photopigment photoplate making photoplay			photon microscope Photon noise Photon noise Photon Quantum Photon Quantum Photon Quantum Photon Radiosurgery System Photon Research Associates, Inc. Photon Resonance Test Photon Sail Photon Sail Photon sails Photon sails Photon Scanning Tunneling Microscopy Photon Shutter Drive Assembly Photon Simulation Interface Photon Stimulated Desorption Photon Stimulated Ion Desorption Photon Systems Instruments Photon Technology International Photon Tether Formation Flight photon theory Photon Torpedo Photon Tunneling Microscopy Photon-counting Image Acquisition Photon-counting Image Acquisition System Photon-Electron Rejecting Alpha Liquid Scintillation photon-gated material Photon-Induced Scanning Auger Microscope photonasty photonegative photonegative photonephelometer Photonephograph photoneutrino photoneutron photoneutron photonic photonic photonic photonic Photonic Air Link Photonic band gap Photonic band gap Photonic Band Gap Fiber Photonic Band Gap Structure Simulator Photonic Band Structure Photonic Band-Edge Laser photonic band-gap material Photonic Band-Gap Structure Photonic bandgap Photonic bandgap Photonic Burst-Switching Photonic chrystal Photonic computer Photonic computer Photonic cross connect Photonic cross-connect Photonic cross-connect Photonic crystal

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photonasty