Science / Psychiatry / Rigidity: An abnormal increase in the general tenseness of muscles that is not caused by anxiety or exercise.

Carbon Fiber

Technology / Motorcycle / Carbon Fiber: A high-tech material available in many motorcycle applications due to its high rigidity and low weight which can allow improvements in the power-to-weight ratio and suspension response of the bike. Ad MORE

Catatonic Schizophrenia

Science / Psychiatry / Catatonic Schizophrenia: (kat-a-ton-ik skiz-o-fre-ne-ah) Schizophrenia characterized by marked disturbance which may involve stupor, negativism, rigidity, excitement, or posturing. MORE


Entertainment / Basketball / Basket: Consists of the rim and the net. MORE


Technology / Home Audio / Polypropylene: A plastic based material used primarily for speaker cones due to its rigidity, damping and resistance against harsh environmental conditions. MORE


Entertainment / Bowling / Kickback: Vertical division boards between the sides of the lanes at the pit end. On many hits the pins can bounce off the kickbacks and knock down more pins; see also sidewalls. Variations: Loose kickback mean MORE

Myotonic Dystrophy

Science / Genetics / Myotonic Dystrophy: A combination of progressive weakening of the muscles and muscle spasms or rigidity, with difficulty relaxing a contracted muscle: inherited as an autosomal dominant trait. MORE