Experimenter

//ɪkˈspɛɹ.ɪ.mɛn.tə// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A person who experiments.

    "In the request-only condition, the experimenter said simply 'Excuse me, I have 5 (20) copies. May I use the xerox machine?' In the placebic information condition, this was followed by the phrase 'because I need to make copies'. In the real information condition, the reason offered in support was 'because I am in a rush'."

  2. 2
    a research worker who conducts experiments wordnet
  3. 3
    a person who enjoys testing innovative ideas wordnet

Synonyms

All synonyms
analystanalyzerexperimentatorresearchertest pilottester

Example

More examples

"Animal experimentation may involve removing organs for no medical reasons, exposing animals to high quantities of toxic or potentially toxic substances, and numerous other procedures that, if performed on humans, would be grounds for prosecution of the experimenter."

Etymology

From experiment + -er.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.