presumptive negative

American  

[pri-zuhmp-tiv neg-uh-tiv] / prɪˈzʌmp tɪv ˈnɛg ə tɪv /

adjective

1. of or relating to a negative test for a disease or medical condition that was done in a local laboratory, but whose results have not been officially confirmed by a public health agency or organization.

2. of or relating to a preliminary test indicating the absence of a substance or pathogen, but which requires confirmation by more rigorous laboratory analysis.

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noun

1. a presumptive negative test result.

Etymology

Origin of presumptive negative

First recorded in 1905–10

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