field theory

noun Physics.
a detailed mathematical description of the distribution and movement of matter under the influence of one or more fields.

1900–05 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
field theory  
  1. An explicit mathematical description of physical phenomena that models physical forces using fields.

  2. The study of fields and field extensions in algebra.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Those people aren't going to figure out a unified field theory.
In quantum field theory, gravitons can be mathematically proven to obey the
  equivalence principle.
Unfortunately, the electroweak model suffered from the same problems in
  prediction as the quantum field theory.
Your first comment seems to be a vision of some type of quantum field theory.
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