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diaheliotropism
diaheliotropism (daɪəˌhiːlɪˈɒtrəˌpɪzəm) nthe tendency among plants to respond to the light of the sun by orienting their leaves perpendicular to the sun's rays, such that the upper surface of the leaves receives maximum lightdiaheliotropism
diaheliotropism[‚dī·ə‚hē·lē·ə′trä‚piz·əm] (botany) Movement of plant leaves which follow the sun such that they remain perpendicular to the sun's rays throughout the day. |