bal·sa 
(bôlsə)
(bôlsə)n.
1.
a. A tropical American tree (Ochroma pyramidale) having soft wood that is very light in weight and is used as a substitute for cork in insulation, floats, and crafts such as model airplanes.
b. The wood of this tree. Also called corkwood.
2. A raft consisting of a frame fastened to buoyant cylinders of wood or metal.
[Spanish, raft, balsa tree (used to make rafts), from Old Spanish, raft, probably of pre-Roman Iberian origin.]
- grantsmanship
- granular
- granularity
- granularly
- granulate
- granulation
- granulative
- granulator
- granule
- granulite
- granulitic
- granulocyte
- granulocyte-macrophage colony-stimulating factor
- granulocytic
- granuloma
- granulomatous
- granulose
- granum
- Granville Stanley
- grape
- grapefruit
- grape hyacinth
- grape phylloxera
- grapeshot
- grape sugar