Meaning of TROPISM
| Pronunciation: | | 'trowpizum
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 WordNet Dictionary |
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[n] an involuntary orienting response; positive or negative reaction to a stimulus source |
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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 |
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| | Definition: | | \Tro"pism\, n. [Gr. ? a turning, ? to turn + -ism.]
(Physiol.)
Modification of the direction of growth.
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| Biology Dictionary |
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| | 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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