melissa

noun
me·​lis·​sa | \ mə-ˈlis-ə How to pronounce melissa (audio) \

Medical Definition of melissa

1 capitalized : a genus of Old World mints having clusters of small white or yellowish flowers and including the lemon balm (M. officinalis)
2 : the leaves and tops of the lemon balm that are a source of citral and have been used as a diaphoretic in the form of a tea