IPA: /ˌhaɪpərɪkˈstɛnʃən/
KK: /haɪpərɪkˈstɛnʃən/
The act of extending a joint in the body beyond its normal limit, which can lead to injury.
The athlete suffered a hyperextension of his knee during the game.
Hyperextension → It is formed from "hyper-" (meaning over or beyond) and "extension" (from Latin "extendere", meaning to stretch out). The word describes the action of stretching a body part beyond its normal range of motion.
Think of 'hyper-' meaning 'over' and 'extension' meaning 'to stretch out' — this helps you remember that hyperextension refers to stretching a body part beyond its normal limits.