Definition of zoonomy in US English:



rare, historical
  • 1The branch of science concerned with the laws or principles of animal life, variously interpreted as covering the internal anatomy, physiology, or growth and development of animals (sometimes contrasted with purely descriptive zoology); animal physiology.

  • 2The theory that the mental powers or characteristics of an individual consist of separate faculties, each of which has its location in an organ found in a definite region of the surface of the brain.


Early 19th century; earliest use found in Medical and Physical Journal. From zoo- + -nomy.