pickproof

adjective
pick·​proof | \ˈpik-ˌprüf \

Definition of pickproof 

: designed to prevent picking a pickproof lock

First Known Use of pickproof

1861, in the meaning defined above

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Dictionary Entries near pickproof

pick over

pickpocket

pickpole

pickproof

pickpurse

pick sack

pick-six

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Time Traveler for pickproof

The first known use of pickproof was in 1861

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