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Medical Dictionary

1

positive

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adjective pos·i·tive \ˈpäz-ət-iv, ˈpäz-tiv\

Medical Definition of positive

  1. 1:  directed or moving toward a source of stimulation <a positive taxis>

  2. 2:  having rendition of light and shade similar in tone to the tones of the original <a positive photographic image>

  3. 3a (1):  being, relating to, or charged with electricity of which the proton is the elementary unit and which predominates in a glass body after being rubbed with silk (2):  having more protons than electrons <a positive ion>b (1):  having higher electrical potential and constituting the part from which the current flows to the external circuit <the positive terminal of a discharging storage battery> (2):  being an electron-collecting electrode of an electron tube

  4. 4a:  marked by or indicating acceptance, approval, or affirmationb:  affirming the presence of that sought or suspected to be present <a positive test for blood>

  5. 5of a lens :  converging light rays and forming a real inverted image

positively \-lē, for emphasis often ˌpäz-ə-ˈtiv-\play adverb
positiveness \ˈpäz-ət-iv-nəs, ˈpäz-tiv-\play noun



2

positive

noun pos·i·tive

Medical Definition of positive

  1. 1:  a positive photograph or a print from a negative

  2. 2:  a positive result (as of a test); also :  a test yielding such a result





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