Look up: tropism

1. tropism
   (Green plants as organisms) growth or movement towards or away from a stimulus such as light, gravity or moisture
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
2. tropism
   [n] - an involuntary orienting response
   Found on http://www.webdictionary.co.uk/definitio
   
   
3. Tropism
   The movement of a plant in response to a stimulus.ChemotropismMovement in response to chemicals.GeotropismMovement in response to gravity.Negative Geotropism - shoots grow upwards.Positive Geotropism - roots grow downwards.HaptotropismResponse to touch such as tendrils on a climbing plant wrapping t...
   Found on http://www.diracdelta.co.uk/science/sour
   
   
4. tropism
   the growth response of part of an organism to a directional,external stimulus causing it to move,turn or bend Category: Botany and zoology • directed movements and orientations found in plants, such as the turning of the sunflower to face the sun.. Category: Medicine
   Found on http://www.mijnwoordenboek.nl/definition
   
   
5. tropism
   <biology> The movement of an organism in response to an external source of stimulus, usually toward or away from it. ... Examples of stimuli are light, heat, food, or chemicals. ... (09 Oct 1997) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
6. tropism
   noun an involuntary orienting response; positive or negative reaction to a stimulus source
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
7. tropism
   (tro´piz-әm) a growth response in a nonmotile organism elicited by an external stimulus, and either toward the stimulus (positive tropism) or away from it (negative tropism); used as a word element combined with a stem that indicates the nature of the stimulus (such as phototropism) or the material or entity for which a...
   Found on http://www.encyclo.co.uk/local/21001
   
   
8. Tropism
   • (n.) Modification of the direction of growth.
   Found on http://thinkexist.com/dictionary/meaning
   
   
9. tropism
   response or orientation of a plant or certain lower animals to a stimulus that acts with greater intensity from one direction than another. It may be ... [3 related articles]
   Found on http://www.britannica.com/eb/a-z/t/84
   
   
10. tropism
    tropism (trōp'izum) , involuntary response of an organism, or part of an organism, involving orientation toward (positive tropism) or away from (negative tropism) one or more external stimuli. The term tropism is usually applied to growth and turgor movements in plants; an involuntary orie...
    Found on http://www.infoplease.com/ce6/sci/A08494
    
    
11. Tropism
    Tropism is a biological term for the behaviour of animals and plants with respect to light or other stimuli.
    Found on http://www.probertencyclopaedia.com/brow
    
    
12. tropism
    Type: Term Pronunciation: trō′pizm Definitions: 1. The phenomenon, observed in living organisms, of moving toward (positive tropism) or away from (negative tropism) a focus of light, heat, or other stimulus; usually applied to the movement of a portion of the organism as opposed to taxis, the movement of an entire organism. &...
    Found on http://www.medilexicon.com/medicaldictio
    
    
13. tropism
    Directional growth of a plant, or part of a plant, in response to an external stimulus such as gravity or light. If the movement is directed towards the stimulus it is described as positive; if away from it, it is negative. Geotropism for example, the response of plants to gravity, causes the root (positively geotropic) to grow downwards, and t...
    Found on http://www.talktalk.co.uk/reference/ency
    
    
14. Tropism
    A `tropism` (from Greek τροπή, trope, "a turning") is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. In tropisms, this response is dependent on the direction of the ...
    Found on http://en.wikipedia.org/wiki/Tropism