The jig is second in popularity only to the reel in traditional Irish dance; it is popular but somewhat less common in Scottish country dance music. 8 time. The most common structure of a jig is two eight-bar parts, performing two different steps, each once on the right foot, and one on the left foot.
Noun. 1. spasm-a painful and involuntary muscular contraction. cramp, muscle spasm. symptom - (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease.
Coronary artery spasm. A coronary artery spasm is a temporary tightening (constriction) of the muscles in the wall of one of the arteries that supplies blood flow to your heart muscle. This can narrow and decrease or even completely prevent blood flow to part of the heart muscle.