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Medical Term:



  1. Through, conveying intensity.
  2. In chemistry, a prefix denoting either 1) more or most, with respect to the amount of a given element (usually oxygen, as in perchloric acid) or radical contained in a compound, or 2) the degree of substitution for hydrogen, as in peroxides, peroxy acids (hydrogen peroxide, peroxyformic acid).

[L. through, throughout, extremely]

See Also: peroxy-

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