noun pl. eucalyptuses or eucalypti
any of a genus (
Eucalyptus) of tall, aromatic, chiefly Australian evergreen trees of the myrtle family, bearing pendent leaves and umbels of white, red, or pink flowers and valued for their timber, gum, and oil
Origin:
ModL < eu- + Gr kalyptos, covered (from the covering of the buds) < kalyptein, to cover, conceal