heliotropism
[/ˌhiːliˈɒtrəpɪzəm/ or /ˌhɛliˈɑtrəpɪzəm/]
nounmasculinepl: heliotropisms
heliotropismo
1. The growth or movement of a plant or organism in response to sunlight, typically turning toward the light source
The heliotropism of sunflowers allows them to follow the sun across the sky during the day.
O heliotropismo dos girassóis permite que eles sigam o sol pelo céu durante o dia.
2. In biology, the directional growth response of living organisms toward or away from light
Young seedlings exhibit positive heliotropism, bending toward available light sources.
As plântulas jovens exibem heliotropismo positivo, curvando-se em direção às fontes de luz disponíveis.
Heliotropism is primarily a scientific and botanical term used in educational and research contexts in both Brazil and the United States. The phenomenon is culturally significant in Brazil due to the importance of sunflowers and other heliotropic crops in agriculture. The term reflects the universal human fascination with plant behavior and solar energy, especially relevant in countries with strong agricultural traditions.
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