The outermost-but-one whorl of a flower, composed of petals, when it is not the same in appearance as the outermost whorl (the calyx); it usually comprises the petal, which may be fused.
Frequency
Pronounced as (IPA)
/kəˈɹoʊlə/
Etymology
From Latin corōlla (“small garland, chaplet or wreath”), diminutive of corōna (“garland, chaplet, wreath”).