リグナムバイタ

noun

lignum vitae

Refers to the very hard, dense wood from trees of the genus Guaiacum, or the trees themselves. Used historically for bearings, mallets, and other durable items.

• リグナムバイタは非ひ常じょうに硬かたく、水みずに沈しずむ木もく材ざいです。

  Lignum vitae is an extremely hard wood that sinks in water.