Noun lignum vitae has 2 senses
  1. lignum vitae, guaiac, guaiacum - hard greenish-brown wood of the lignum vitae tree and other trees of the genus Guaiacum
    --1 is a kind of wood
    --1 is a substance of lignum vitae, Guaiacum officinale
  2. lignum vitae, Guaiacum officinale - small evergreen tree of Caribbean and southern Central America to northern South America; a source of lignum vitae wood, hardest of commercial timbers, and a medicinal resin
    --2 is a kind of angiospermous tree, flowering tree
    --2 is a member of Guaiacum, genus Guaiacum
    --2 has substances: lignum vitae, guaiac, guaiacum; guaiacum
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