Geotropism meaning

jē-ŏt'rə-pĭz'əm
The definition of geotropism is the growth of a plant or immovable animal in response to the force of gravity.

An example of geotropism is the roots of a plant growing down into the ground.

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Any positive (or negative) movement or growth of a plant or sessile animal in response to (or against) the force of gravity.
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(biology) The movement of a plant in response to gravity (either downwards or upwards)
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The directional growth of an organism in response to gravity. Roots display positive geotropism when they grow downwards, while shoots display negative geotropism when they grow upwards.
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Origin of geotropism