- any of several trees of the genus Eucalyptus, especially E. camaldulensis, having smooth, gray bark.
- the hard, reddish wood of this tree, used for making railroad ties, fence posts, etc.
- sweet gum(defs 1, 2).
- any of several Australian myrtaceous trees of the genus Eucalyptus, esp E. camaldulensis, which has reddish woodSee also blue gum
- the hard red wood from this tree, used for making railway sleepers, posts, etc
- another name for sweet gum