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From Latin foliaceus, from folium (a leaf).


foliaceous (comparative more foliaceous, superlative most foliaceous)

  1. Resembling a leaf or leaves.
    • 1795, James Hutton, Theory of the Earth, Volume 1 (of 4)[1]:
      I have one specimen, in which the primary crystals are siliceous, the secondary thin foliaceous crystals of deep red but transparent iron-ore, forming elegant figures, that have the form of roses.
    • 1901, T. H. Pardo de Tavera, The Medicinal Plants of the Philippines[2]:
      The bitter principle contained in the root, wood and bark was discovered by Blunse who named it samaderin; it is a white, crystalline, foliaceous substance, more soluble in water than in alcohol, fusible.
  2. Bearing leaves.