Definition of pulvinus
pulvini
play \-ˈvī-ˌnī, -ˈvē-(ˌ)nē\: a swelling at the base of a petiole or petiolule
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Origin and Etymology of pulvinus
New Latin, from Latin, cushion
First Known Use: circa 1857
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Britannica.com: Encyclopedia article about pulvinus
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