extension of an arm or leg beyond its normal limits
hyperextension in American English
(ˌhaipərɪkˈstenʃən)
noun
the extension of a part of the body beyond normal limits
Word origin
[1880–85; hyper- + extension]This word is first recorded in the period 1880–85. Other words that entered Englishat around the same time include: automatism, highball, interface, jackpot, regionalismhyper- is a prefix appearing in loanwords from Greek, where it meant “over,” usually implyingexcess or exaggeration (hyperbole). On this model, hyper- is used, especially as opposed to hypo-, in the formation of compound words (hyperthyroid). Other words that use the affix hyper- include: hyperbaric, hypercharge, hyperkinesia, hyperurbanism, hyperventilation
Examples of 'hyperextension' in a sentence
hyperextension
The other complicating factor is the hyperextension of his hip joints.
Times, Sunday Times (2012)
That is the big danger - what is called hyperflexion rather than hyperextension.