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See also: dérivation


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Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for derivation in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)


From Middle French dérivation, from Latin derivatio.



derivation (plural derivations)

  1. A leading or drawing off of water from a stream or source.
  2. The act of receiving anything from a source; the act of procuring an effect from a cause, means, or condition, as profits from capital, conclusions or opinions from evidence.
  3. (grammar, genealogy) The act of tracing origin or descent.
    the derivation of a word from an Indo-European root
  4. The state or method of being derived; the relation of origin when established or asserted.
  5. That from which a thing is derived.
  6. That which is derived; a derivative; a deduction.
  7. (mathematics) The operation of deducing one function from another according to some fixed law, called the law of derivation, as the of differentiation or of integration.
  8. (medicine) A drawing of humors or fluids from one part of the body to another, to relieve or lessen a morbid process.

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