DICT.TW Dictionary Taiwan

 I·ron·wood n. Bot. A tree unusually hard, strong, or heavy wood.
 Note: ☞ In the United States, the hornbeam and the hop hornbeam are so called; also the Olneya Tesota, a small tree of Arizona; in the West Indies, the Erythroxylon areolatum, and several other unrelated trees; in China, the Metrosideros vera; in India, the Mesua ferrea, and two species of Inga; in Australia, the Eucalyptus Sideroxylon, and in many countries, species of Sideroxylon and Diospyros, and many other trees.
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 inga
      n : any tree or shrub of the genus Inga having pinnate leaves
          and showy usually white flowers; cultivated as
          ornamentals