adj.
Pronunciation: p ə - ˌ pi-l ē - ə - ' n ā -sh ə s
Function: adjective
Etymology: Latin papilion-, papilio butterfly ― more at PAVILION
Date: 1668
: having a corolla (as in the bean or pea) with usually five petals that include a large upper petal enclosing two lateral wings and a lower carina of two united petals