Term: balsa: strong lightweight wood of the balsa tree used especially for floats
Broader: plant material: material derived from plants | Unrelated: ballast: coarse gravel laid to form a bed for streets and railroads
Broader: plant material: material derived from plants | Unrelated: penis: the male organ of copulation (`member' is a euphemism)
Broader: plant material: material derived from plants | Unrelated: betulaceae: monoecious trees and shrubs (including the genera Betula and Alnus and Carpinus and Corylus and Ostrya and Ostryopsis)
Broader: plant material: material derived from plants | Unrelated: beggar's lice: Eurasian and North American plants having small prickly nutlets that stick to clothing
Broader: plant material: material derived from plants | Unrelated: escalation: an increase to counteract a perceived discrepancy
Broader: plant material: material derived from plants | Unrelated: aflatoxin: a potent carcinogen from the fungus Aspergillus; can be produced and stored for use as a bioweapon
Broader: plant material: material derived from plants | Unrelated: stirrup pump: a hand-operated reciprocating pump; used in fighting fires
Broader: plant material: material derived from plants | Unrelated: arteriolosclerosis: sclerosis of the arterioles
Broader: plant material: material derived from plants | Unrelated: radiopaque dye: dye that does not allow the passage of X rays or other radiation; used to outline certain organs during X-ray examination
Broader: plant material: material derived from plants | Unrelated: stretcher: a wooden framework on which canvas is stretched and fixed for oil painting