Medical Dictionary
1negative
adj neg·a·tive\ˈneg-ət-iv\
Medical Definition of NEGATIVE
1
: marked by denial, prohibition, or refusal <received a negative answer>
2
: marked by features (as hostility, withdrawal, or pessimism) that hinder or oppose constructive treatment or development <a negative outlook>
3
a : being, relating to, or charged with electricity of which the electron is the elementary unit b : having more electrons than protons <negative ions> c (1) : having lower electrical potential and constituting the part toward which the current flows from the external circuit <the negative pole> (2) : being the electron-emitting electrode of an electron tube
4
a : not affirming the presence of a condition, substance, or organism suspected to be present; also : having a test result indicating the absence especially of a condition, substance, or organism <she is HIV negative> b : directed or moving away from a source of stimulation <negative tropism>
5
: having the light and dark parts in approximately inverse relation to those of the original photographic subject
—neg·a·tive·ly adverb
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