Noun palo santo has 1 sense
  1. palo santo, Bulnesia sarmienti - South American tree of dry interior regions of Argentina and Paraguay having resinous heartwood used for incense
    --1 is a kind of angiospermous tree, flowering tree
    --1 is a member of Bulnesia, genus Bulnesia
    --1 has substances: guaiac wood, guaiacum wood
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