Noun lignum vitae has 2 senses
- 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
- 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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