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presumptive negative

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

adjective

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

noun

a presumptive negative test result.

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In our third teacher-created PSAT practice test there are new and unique vocabulary terms you may have never heard of! Can you guess what they mean?
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seclusion
a false belief or opinion.
the matter that settles to the bottom of a liquid.
the state of being isolated, kept apart, or withdrawn into solitude.
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Also called pre·sumed neg·a·tive [pri-zoomd-neg-uh-tiv] /prɪˈzumd ˈnɛg ə tɪv/ .
Compare presumptive positive.

Origin of presumptive negative

First recorded in 1905–10

Words nearby presumptive negative

presumption of innocence, presumption of law, presumption of survivorship, presumptive, presumptive heir, presumptive negative, presumptive positive, presumptuous, presuppose, presupposition, presuppurative
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021