'Ironbark tree' definitions:

Definition of 'Ironbark tree'

From: GCIDE
  • Ironbark \I"ron*bark`\, Ironbark tree \I"ron*bark` tree`\ (Bot.) The Australian Eucalyptus Sideroxylon, used largely by carpenters and shipbuilders; -- called also ironwood. Also applied to other Australian eucalyptuses with a hard, solid bark [1913 Webster +PJC]