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pulvinus

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noun pul·vi·nus \ˌpəl-ˈvī-nəs, -ˈvē-\

Definition of pulvinus

plural pul·vi·niplay \-ˈvī-ˌnī, -ˈvē-(ˌ)nē\

  1. :  a swelling at the base of a petiole or petiolule



Origin of pulvinus

New Latin, from Latin, cushion


First Known Use: circa 1857


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