a tropical American tree, Ochroma pyramidale (lagopus), of the bombax family, yielding an exceedingly light wood used for life preservers, rafts, toy airplanes, etc.
A tropical American tree (Ochroma pyramidale) having wood that is soft, very light in weight, and that is used as a substitute for cork in insulation, floats, and crafts such as model airplanes.
The wood of this tree. Also called corkwood.
A raft consisting of a frame fastened to buoyant cylinders of wood or metal.