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functional disease

noun, Pathology
a disease in which there is an abnormal change in the function of an organ, but no structural alteration in the tissues involved (opposed to organic disease).
Origin of functional disease
1870-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for functional disease
Historical Examples
  • Pruritus is a functional disease of the skin, the sole symptom of which is itching, there being no structural change.

    Essentials of Diseases of the Skin Henry Weightman Stelwagon
  • When we have to deal in practice with a case of functional disease, discrimination is obligatory from the standpoint of prognosis.

British Dictionary definitions for functional disease

functional disease

a disease in which there is no observable change in the structure of an organ or part Compare organic disease
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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