Look up: phototropism

1. 
   Phototropism
   the bending of a plant toward the direction of more intense light.
   Found on http://www.hcs.ohio-state.edu/mg/manual/
   
   
2. 
   phototropism
   (Green plants as organisms) growth or movement stimulated by light.
   Found on http://www.bbc.co.uk/schools/gcsebitesiz
   
   
3. 
   phototropism
   [n] - an orienting response to light
   Found on http://www.webdictionary.co.uk/definitio
   
   
4. 
   phototropism
   the directional orientation of parts of sessile plants and animals toward(positive)or away from(negative)light stimulation Category: Medicine • the response of plant organs in growth or position to the direction of light Category: Botany and zoology
   Found on http://www.mijnwoordenboek.nl/definition
   
   
5. 
   phototropism
   Movement or growth of part of an organism (eg. a plant shoot) towards (positive phototropism) a source of light, without overall movement of the whole organism.
   Found on
   
   
6. 
   Phototropism
   Pho·tot'ro·pism noun [ Photo- + Greek ... to turn.] (Plant Physiol.) The tendency of growing plant organs to move or curve under the influence of light. In ordinary use the term is practically synonymous with heliotropism.
   Found on http://www.encyclo.co.uk/webster/P/78
   
   
7. 
   phototropism
   noun an orienting response to light
   Found on http://wordnet.princeton.edu/perl/webwn?
   
   
8. 
   Phototropism
   `Phototropism` is directional plant growth in which the direction of growth is determined by the direction of the light source. Phototropism is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is a `positive phototropism`, while growth away from light is called `negative phototropism` (or `Skototropism`). Most plant shoots exhibit positive phototropism, while roots usually exhibit negati...
   Found on http://en.wikipedia.org/wiki/Phototropis
   
   
9. 
   phototropism
   (fo-tot´rә-piz-әm) tropism of an organism in response to light; it may be either positive (toward the light) or negative (away from the light). change of color produced in a substance by the action of light. adj., phototrop´ic., adj.
   Found on http://www.mercksource.com/pp/us/cns/cns
   
   
10. 
    Phototropism
    • (n.) The tendency of growing plant organs to move or curve under the influence of light. In ordinary use the term is practically synonymous with heliotropism.
    Found on http://thinkexist.com/dictionary/meaning
    
    
11. 
    phototropism
    (from the article `plant development`) Light affects both the orientation of the seedling and its form. When a seed germinates below the soil surface, the plumule may emerge bent over, ... ...or certain lower animals to a stimulus that acts with greater intensity from one direction than another. It may be achieved by active movement or ...
    Found on http://www.britannica.com/eb/a-z/p/61
    
    
12. 
    phototropism
    phototropism 1. In botany, the movement of a part of a plant toward or away from light sources. 2. The tropism (movement) of an organism in response to the source of a light stimulus. 3. The change of color produced in a substance by the action of light.
    Found on http://www.wordinfo.info/words/index/inf
    
    
13. 
    phototropism
    Movement of a part of an organism toward (positive phototropism) or away from (negative phototropism) the stimulus of light. Cf. phototaxis [photo- + G. trop, a turning]
    Found on
    
    
14. 
    phototropism
    In plants, a growth response to a light stimulus. It is exhibited, for example, by house plants whose stems bend toward a window.
    Found on http://www.daviddarling.info/encyclopedi