In the natural sciences, a primary source could be defined as a report of original findings or ideas. These sources often appear in the form of research articles with sections on methods and results..
crampon - a hinged pair of curved iron bars; used to raise heavy objects crampoon grapnel, grapple, grappling hook, grappling iron, grappler - a tool consisting of several hooks for grasping and holding; often thrown with a rope
A cramp is the tightening of a muscle into the contracted state. Muscles have two states: relaxed and contracted. A muscle is relaxed when all of the fibers within the muscle are elongated. When the muscle does its job, calcium goes into the muscle cells and sodium rushes out.