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|Noun||1.||Melissa officinalis - bushy perennial Old World mint having small white or yellowish flowers and fragrant lemon-flavored leaves; a garden escapee in northern Europe and North America|
lemon balm - lemony leaves used for a tisane or in soups or fruit punches
herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests