plyometricsEtymologyFrom Ancient Greek πλείων (pleíōn, “more”) + -metric (“measure”). Additional details are available in Wikipedia at plyometrics § Etymology.plyometrics means A form of exercise that involves the rapid stretching and contracting of muscles to develop muscular power. Lexicurio rates it Sui generis — a strength score of 89 out of 100.nounA form of exercise that involves the rapid stretching and contracting of muscles to develop muscular power.“She was not one of those women who needed to endure complicated half hours of rubbing and prodding and explosive plyometrics before her body tensed and the dam holding back her pleasure burst.”