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Definitions from WordNet

Definitions from the Web

Heliotropism

Definition:

Heliotropism is the directional growth or movement of organisms in response to the stimulus of sunlight.

Example Sentences:

• The sunflower exhibits positive heliotropism by facing towards the sun throughout the day.
• Plants showing negative heliotropism tend to grow away from the direct sunlight.
• The leaves of the mimosa plant display heliotropism, folding up during the night and opening up when exposed to sunlight.

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