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English definition of “invalidity”

invalidity

noun [U]     /ˌɪnvəˈlɪdəti/
the fact of not being legally or officially acceptable : The company was fully aware of the invalidity of its patent .
GOVERNMENT the condition of being unable to work because of health problems , and receiving money from a government or organization because of this : The ex-soldier receives an invalidity pension from the Army .
(Definition of invalidity noun from the Cambridge Business English Dictionary © Cambridge University Press)
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