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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