wood of any of various eucalyptus trees valued as timber
"The construction crew harvested fresh eucalyptus for its durable timber to build the new fence."
a tree of the genus Eucalyptus
"The farmer planted rows of eucalyptus along the riverbank to prevent soil erosion."
Any of many trees, of genus Eucalyptus, native mainly to Australia.
"The gardener planted several eucalyptus saplings in the backyard after reading that they are native mainly to Australia."