eliotropismo significa in inglese

heliotropism [heliotropisms]▼(the property of some plants of turning under the influence of light)
noun
[UK: ˈhɛljətrəʊpɪz(ə)m ] [US: ˈhiliəˌtroʊpɪz(ə)m ]

phototropism▼(biology: the movement of a plant towards or away from light)
noun