jacaranda noun3 •Any of several trees, of the genus Jacaranda, native to tropical South America, that have pale purple, funnel-shaped flowers. In horticultural use refers specifically to Jacaranda mimosifolia.They passed slowly under the jacaranda trees beginning to bloom lavender over their heads. — 2020 •The hard, dark wood of these trees. •A trade name for similar hardwood timber from certain species of Dalbergia, notably Dalbergia frutescens, Dalbergia nigra and Dalbergia refusa. formsjacarandas