eucalyptus
n. C / Un. a tall tree with strong-smelling leaves that stay green all year. These trees are originally from Australia, and their oil is often used in medicine or for its fresh scent.
n. an evergreen tree or shrub of the genus Eucalyptus, native to Australasia and widely cultivated for its timber, gum, and aromatic oil. The leaves contain oil glands that produce a distinctive, medicinal fragrance.
The smell of eucalyptus filled the air after the rain.
Koalas feed almost exclusively on the leaves of certain eucalyptus species, which provide both nutrition and hydration.
The rapid growth of eucalyptus plantations has made them a valuable source of pulpwood, though their high water consumption and flammable oils can impact local ecosystems.
Uncountable when referring to the wood or the scent; countable when referring to specific botanical species or individual trees.