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|Noun||1.||genus Melissa - a genus of Old World mints of the family Labiatae|
asterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs
family Labiatae, family Lamiaceae, Labiatae, Lamiaceae, mint family - a large family of aromatic herbs and shrubs having flowers resembling the lips of a mouth and four-lobed ovaries yielding four one-seeded nutlets and including mint; thyme; sage; rosemary