attenuated

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attenuated

[əten′yo̅o̅·ā′tid]
Etymology: L, attenuare, to make thin
pertaining to the dilution of a solution or the reduction in virulence or toxicity of a microorganism or a drug by weakening it.

attenuated

adjective Medtalk
1. Reduced in virulence or infectivity.
2. Thin, minimal, markedly reduced or decreased.

attenuated

Weakened or reduced, and so altered in characteristics so as no longer to be dangerous. The term is applied to organisms that have been specially cultured so as to reduce their virulence and make them suitable for use in vaccines.

Attenuated

Alive but weakened; an attenuated microorganism can no longer produce disease.
Mentioned in: Tuberculin Skin Test

attenuated

having undergone a process of attenuation.

attenuated breath sounds
normal breath sounds audible via a stethoscope over the lungs.