pulvinus
noun
pul·vi·nus
| \ ˌpəl-ˈvī-nəs
, -ˈvē-
\
, -ˈvē-
\
plural pulvini\ ˌpəl-ˈvī-ˌnī
, -ˈvē-(ˌ)nē \
, -ˈvē-(ˌ)nē \
Definition of pulvinus
: a swelling at the base of a petiole or petiolule
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