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Meaning of TROPISM

Pronunciation:  'trowpizum

 
WordNet Dictionary
 
 Definition: 
[n]  an involuntary orienting response; positive or negative reaction to a stimulus source
 

TROPISM is a 7 letter word that starts with T.

 

 See Also: ergotropism, geotropism, heliotropism, meteortropism, neurotropism, phototropism, reaction, response, trophotropism

 

 

Webster's 1913 Dictionary
 
 Definition: 
\Tro"pism\, n. [Gr. ? a turning, ? to turn + -ism.]
(Physiol.)
Modification of the direction of growth.

 
Biology Dictionary
 
 Definition: 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.
 

 

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