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pulvinus

Syllabification: (pul·vi·nus)
Pronunciation: /pəlˈvīnəs, -ˈvēnəs/

Definition of pulvinus

noun (plural pulvini /-ˌnī, -nē/)

Botany
  • an enlarged section at the base of a leaf stalk in some plants that is subject to changes of turgor, leading to movements of the leaf or leaflet.

Origin:

mid 19th century: from Latin, literally 'cushion'

pulvinus in other Oxford dictionaries

Definition of pulvinus in the British & World English dictionary

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