phototropism

[ foh-to-truh-piz-uhm, foh-toh-troh-piz-uhm ]

/ foʊˈtɒ trəˌpɪz əm, ˌfoʊ toʊˈtroʊ pɪz əm /

noun Botany.

phototropic tendency or growth.

Origin of phototropism

First recorded in 1895–1900; photo- + -tropism

Words nearby phototropism

phototoxin, phototransistor, phototroph, phototrophic bacteria, phototropic, phototropism, phototropy, phototube, phototype, phototypeset, phototypesetting

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for phototropism

phototropism

/ (ˌfəʊtəʊˈtrəʊpɪzəm) /

noun

the growth response of plant parts to the stimulus of light, producing a bending towards the light source

the response of animals to light; phototaxis

Derived forms of phototropism

phototropic, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for phototropism

phototropism

[ fō-tŏt′rə-pĭz′əm ]

n.

Growth or movement of a sessile organism toward or away from a source of light.

Other words from phototropism

pho′to•tro′pic (fō′tə-trō′pĭk, -trŏp′ĭk) adj.

Scientific definitions for phototropism

phototropism

[ fō-tŏt′rə-pĭz′əm ]

The growth or movement of a fixed organism toward or away from light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light. Certain sessile invertebrates also exhibit phototropism.

单词	phototropism
释义	phototropism [ foh-to-truh-piz-uhm, foh-toh-troh-piz-uhm ] / foʊˈtɒ trəˌpɪz əm, ˌfoʊ toʊˈtroʊ pɪz əm / noun Botany. phototropic tendency or growth. Origin of phototropism First recorded in 1895–1900; photo- + -tropism Words nearby phototropism phototoxin, phototransistor, phototroph, phototrophic bacteria, phototropic, phototropism, phototropy, phototube, phototype, phototypeset, phototypesetting Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for phototropism phototropism / (ˌfəʊtəʊˈtrəʊpɪzəm) / noun the growth response of plant parts to the stimulus of light, producing a bending towards the light source the response of animals to light; phototaxis Derived forms of phototropism phototropic, adjective Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for phototropism phototropism [ fō-tŏt′rə-pĭz′əm ] n. Growth or movement of a sessile organism toward or away from a source of light. Other words from phototropism pho′to•tro′pic (fō′tə-trō′pĭk, -trŏp′ĭk) adj. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for phototropism phototropism [ fō-tŏt′rə-pĭz′əm ] The growth or movement of a fixed organism toward or away from light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light. Certain sessile invertebrates also exhibit phototropism. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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