Balsa

noun
  1. A fast-growing tropical American tree (Ochroma pyramidale) known for its lightweight wood, which is often used in model making and as a core material in composite construction. noun
    The model airplane was constructed using balsa wood due to its light weight.
    Balsa trees are primarily found in Central and South America.
  2. The wood obtained from the balsa tree, characterized by its softness, lightness, and buoyancy, making it ideal for crafts and lightweight structures. noun
    Balsa wood is commonly used in crafting because it is easy to cut and shape.
    Due to its buoyancy, balsa wood is often used to make rafts and life preservers.