balsa wood

1. The duo cut rectangular holes in balsa wood and covered them with glass microscope slides.
   两人在轻质木材上剜出一些长方形的洞，然后在洞口盖上显微镜玻片。
2. Agriculture: bananas, coffee, cacao, rice; cattle; balsa wood; fish.
   农业：香蕉，咖啡，可可，大米；牛肉；木材，鱼类。

noun

1. strong lightweight wood of the balsa tree used especially for floats

   Synonym:    balsa