ユソウボク
Meanings
1
guaiacum; roughbark lignum-vitae; guaiacwood
usually written using kana alone
A tropical tree species (Guaiacum officinale) known for its hard wood and medicinal resin. Botanical term.
Guaiacum is known as an extremely hard wood.
The resin of guaiacum was once used to treat syphilis.