pulvinus


pul·vi·nus

noun \ˌpəl-ˈvī-nəs, -ˈvē-\
plural pul·vi·ni\-ˈvī-ˌnī, -ˈvē-(ˌ)nē\

Definition of PULVINUS

:  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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