eucalyptus gum

1. Any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum.
   各种各样产树胶的桉属植物或枫香树的任意一种。
2. The sweet gum, sour gum, and some Australian eucalyptus trees are gum trees.
   甜胶树、酸胶树和一些澳大利亚的尤加利树都是产树胶的树。

noun

1. reddish-brown dried gummy exudation from any of several trees of the genus Eucalyptus especially Eucalyptus camaldulensis

   Synonym:    eucalyptus kinored gum