phototropism
noun/foʊˈtɑtrəˌpɪzəm/
Frequency rank: #19,982 most common English word
Meaning
the growth or movement of a plant in response to light, either toward or away from the source.

Example sentence
Sunflowers display phototropism by turning their heads to follow sunlight throughout the day.
Synonyms & related words
- heliotropism
- phototaxis
- light-seeking
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