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?


3 Answers 3


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.


Yes there is a difference.

Experiment is a test

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


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.



The act, process, or practice of experimenting.


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


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.


  • 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.
  • 2
    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. Feb 26, 2012 at 15:45

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