mə̇ˈlisə noun
Etymology: New Latin, from Greek melitta, melissa bee, from melit-, meli honey — more at mellifluous
1. capitalized : a genus of Old World mints having axillary clusters of small white or yellowish flowers with a bilabiate calyx, exserted corolla, and divergent anther lobes — see balm 3a, lemon balm
2. -s : a plant of the genus Melissa