pseudorandom

adjective
pseu·do·ran·dom | \ˌsü-dō-ˈran-dəm \

Definition of pseudorandom 

: being or involving entities (such as numbers) that are selected by a definite computational process but that satisfy one or more standard tests for statistical randomness

First Known Use of pseudorandom

1949, in the meaning defined above

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The first known use of pseudorandom was in 1949

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