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If I am correct, both experiment and experimentation exist in English. Which one should I use? Can I say the following two sentences?

  • This week, I am conducting new experiments at the laboratory
  • This week, I am conducting new experimentations at the laboratory

If the answer is yes, is there any difference between them?

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How could I improve the question so the down voter be happy? The question is legit and because of the good explanation I got I no more do the mistake. –  Zonata Nov 14 '12 at 1:53
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3 Answers

up vote 5 down vote accepted

Experimentation is the act of doing experiments.

So you would say "I am conducting new experiments at the laboratory"

eg. "not all experimentation is done in a laboratory" means sometimes experiments are done outside the lab.

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Yes there is a difference.

Experiment is a test

Experimentation is the act of carrying out a test, or doing tests.

E.g.:

Over 200 experiments are carried out each week at the laboratory.
The new car is undergoing experimentation by the expert drivers at the race track.

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experimentation

The act, process, or practice of experimenting.

Usage:

  • Children need the opportunity for experimentation.
  • Extensive experimentation is needed before new drugs can be sold.
  • Experimentation with illegal drugs is dangerous.

experiments

A test under controlled conditions that is made to demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy of something previously untried.

Usage:

  • Some people believe that experiments on animals should be banned.
  • Scientists are conducting/carrying out/doing experiments to test the effectiveness of the new drug.
  • I've bought a different kind of coffee this week as an experiment (= in order to see what it is like).
  • We can only find the best solution by experiment.
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I think this answer might be slightly confusing. For your example sentences for "experiment", the first and fourth would read fine with "experimentation" (singular), but not the second or third. –  Peter Shor Feb 26 '12 at 15:45
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