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see bombaxbombax
, common name for the Bombacaceae, a family of deciduous trees, often tall and with unusually thick trunks, found chiefly in the American tropics. The family includes many commercially important members, e.g.
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Ochroma lagopus. A tropical American tree in the order Malvales; its wood is strong and lighter than cork.

balsa, corkwood

The lightest of all woods, with density of about 7 to 10 lb per cu ft (110 to 160 kg per cu m); used for the core of lightweight sandwich panels, models, etc.


1. a bombacaceous tree, Ochroma lagopus, of tropical America
2. the very light wood of this tree, used for making rafts, etc
3. a light raft
References in periodicals archive ?
In the first phase of the project we designed several cars using AutoCAD and tested them virtually, we then had to order the best type of balsa wood to manufacture the cars, which are slightly bigger than the palm of a hand.
I only wish I still had my balsa wood Spitfire to remind me of another world when life seemed much simpler.
The Norwegian film, Kon-Tiki, tells the story of a sweeping adventure detailing legendary explorer Thor Heyerdahl's daring attempt to prove that early settlers from South America once populated Polynesia by sailing across the Pacific on a simple balsa wood raft.
The competition requires a team to design, model and test a scaled version of a racing car made from Balsa wood to be sent down a 20m racetrack powered by a CO2 canister.
NORWEGIAN ADVENTURER Thor Heyerdahl's 1947 Pacific crossing from South America to Polynesia in a self-made raft of balsa wood, and the book that followed, have fueled many generations' fascination with exploration.
Quiz of the Day ANSWERS: 1 Ladysmith; 2 Surrealism; 3 Napoleon Bonaparte; 4 Lepanto; 5 Softball; 6 The Railway Children; 7 Parquetry; 8 The sonnet; 9 Home and Away; 10 Balsa wood.
Choose from DIY planes fashioned from balsa wood, sewing fun costumes or creating a play boat from a metal bath tub and a canvas sail.
The aeromodellers, using remote-controlled aircraft, will be flying scaled-down versions of full size planes, using lightweight materials such as polystyrene, balsa wood, foam and fiberglass.
Student Daniel Finnamore said: "The competition is based around racing a one twentieth scale race car made from balsa wood.
11 Teams were registered for the event which allowed students, ages 14-to-17, to race miniature balsa wood F1 cars they designed themselves.
Gamera weighs-in at a feathery 210 pounds, student pilot included, and owes its lightweight to the balsa wood, foam, mylar and carbon fiber used in construction.
Summary: As the miniature Formula One car sped down the 20-metre straight track, team contestants clenched their fists, willing the air-powered balsa wood sports car to reach the finish lane fast.