basil balm n 1: perennial herb of North America (New York to Illinois and mountains of Alaska) having aromatic leaves and clusters of yellowish-pink balls [syn: {Monarda clinopodia}] 2: fragrant European mint having clusters of small violet-and-white flowers; naturalized especially in eastern North America [syn: {basil thyme}, {mother of thyme}, {Acinos arvensis}, {Satureja acinos}]