[noun ik-sper-uh-muhnt; verb ek-sper-uh-ment]


a test, trial, or tentative procedure; an act or operation for the purpose of discovering something unknown or of testing a principle, supposition, etc.: a chemical experiment; a teaching experiment; an experiment in living.
the conducting of such operations; experimentation: a product that is the result of long experiment.
Obsolete. experience.

verb (used without object)

to try or test, especially in order to discover or prove something: to experiment with a new procedure.

Origin of experiment

1325–75; Middle English: proof < Latin experīmentum. See experience, -ment
Related formsex·per·i·ment·er, ex·per·i·men·tor, ex·per·i·men·ta·tor, nounpre·ex·per·i·ment, nounpro·ex·per·i·ment, adjectivere·ex·per·i·ment, verb (used without object), nounun·ex·per·i·ment·ed, adjective

Synonyms for experiment

Synonym study

1. See trial.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for experimented

Contemporary Examples of experimented

Historical Examples of experimented

  • She had not experimented to an authoritative extent with the desert pickles.

    Her Father's Daughter

    Gene Stratton-Porter

  • We experimented with it, after we had first noticed it, but we don't any more.

    Questionable Shapes

    William Dean Howells

  • It is claimed that Newton experimented with a steam motor in 1680.

    The Railroad Question

    William Larrabee

  • Some such exercises have already been experimented with, and others might be devised.

  • As one member after the other experimented with him he described their dress.


    W. W. Baggally

British Dictionary definitions for experimented


noun (ɪkˈspɛrɪmənt)

a test or investigation, esp one planned to provide evidence for or against a hypothesis: a scientific experiment
the act of conducting such an investigation or test; experimentation; research
an attempt at something new or different; an effort to be originala poetic experiment
an obsolete word for experience

verb (ɪkˈspɛrɪˌmɛnt)

(intr) to make an experiment or experiments
Derived Formsexperimenter, noun

Word Origin for experiment

C14: from Latin experīmentum proof, trial, from experīrī to test; see experience
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for experimented



mid-14c., from Old French esperment "practical knowledge, cunning, enchantment; trial, proof, example, lesson," from Latin experimentum "a trial, test, proof, experiment," noun of action from experiri "to test, try" (see experience).



late 15c., from experiment (n.). Related: Experimented; experimenting.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for experimented




A test under controlled conditions that is made to demonstrate a known truth, to examine the validity of a hypothesis, or to determine the efficacy of something previously untried.
The process of conducting such a test; experimentation.
An innovative act or procedure.
The result of experimentation.


To conduct an experiment.
To try something new, especially in order to gain experience.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for experimented



A test or procedure carried out under controlled conditions to determine the validity of a hypothesis or make a discovery. See Note at hypothesis.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.