countercountermeasure

noun coun·ter·coun·ter·mea·sure \ ˌkau̇n-tər-ˈkau̇n-tər-ˌme-zhər , -ˌmā- \
variants: or counter-countermeasure or counter-counter-measure

Definition of countercountermeasure

plural countercountermeasures or counter-countermeasures or counter-counter-measures
: an action or device designed to negate or offset a countermeasure; especially : a military system or device intended to block a sensing mechanism (such as a radar detector) that was intended to counteract another sensing mechanism (such as radar)
  • They have made a massive investment in electronic counter-countermeasures, as well as lethal and non-lethal countermeasures.
  • —Deborah M. Kyle et al.

First Known Use of countercountermeasure

1944

in the meaning defined above

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