Hard but liable to break easily
glass is a brittle material
(A condition of) timber that is characterized by abnormal brittleness and low strength, especially in the heartwood.
Susceptible to fracture at a notch when a sudden load is applied.
Eager to work, industrious, energetic.
A brittle toffee containing roasted peanuts.
Fracture of a metal or other material occurring without appreciable prior plastic deformation
The mineral stephanite.
Another term for osteogenesis imperfecta or osteoporosis.