- photonasty
- n. Botany, adoption of certain position due to effect of light on growth.♦ photonastic, a.
Dictionary of difficult words. 2015.
photonasty
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photonasty — pho·to·nas·ty … English syllables
photonasty — /ˈfoʊtoʊnæsti/ (say fohtohnastee) noun the movement of plant parts in response to changes in light intensity, as the diurnal opening of leaves and flowers. {photo + nasty} …
photonasty — ˈ ̷ ̷ ̷ ̷ˌnastē noun ( es) Etymology: International Scientific Vocabulary phot + nasty; probably originally formed as German photonastie : a nastic movement that is associated with changes in light intensity * * * phoˈtonasty noun (Gr nastos… … Useful english dictionary
Phototropism — is directional growth in which the direction of growth is determined by the direction of the light source. In other words, it is the growth and response to a light stimulus. Phototropism is most often observed in plants, but can also occur in… … Wikipedia
Nastic movements — For the Spanish football team, see Gimnàstic de Tarragona. Photonastic movement of Oxalis triangularis in response to light. At lowered light levels the leaves fold down; timelapse recorded at 750x actual speed and covering a 1.5 hr period of… … Wikipedia
Oxalis triangularis — Scientific classification Kingdom: Plantae (unranked) … Wikipedia
