experimenter
/ɪkˈspɛɹ.ɪ.mɛn.tə/
"experimenter" is a 12-letter English headword indexed on PlainSpell.
The verdict
“experimenter” is uncommon English (frequency #54,168 among 2,246 “E” headwords), classed as a noun. The kind of spelling people second-guess.
- #54,168
- frequency rank, English
- 2,246
- “E” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A person who experiments.
Corpus desk
Index EN-experimenter · experimenter · English
experimenter · rank #54,168 · 0 variants · 0 confusables
- FREQ-RARE #54,168
- LEN-MEGA 12 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,246
- PHOTO-FINISH Ewell
Nearest frequency peer: Ewell (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “experimenter”
Sparse band: bars invert rank so rarer forms read shorter
- Escondido
Escondido
45,839 corpus weight
- Estella
Estella
45,837 corpus weight
- Ewell
Ewell
45,834 corpus weight
- experimenter
experimenter
45,833 corpus weight
- eze
eze
45,831 corpus weight
- feathering
feathering
45,827 corpus weight
What this shows Long-tail view: where “experimenter” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | experimenter |
| Language | English |
| Part of speech | Noun |
| IPA | /ɪkˈspɛɹ.ɪ.mɛn.tə/ |
| Letters | 12 |
| Frequency rank | #54,168 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “experimenter” in English
Rare enough to double-check
experimenter is uncommon English at frequency #54,168 among 2,246 “E” headwords, classed as anoun, transcribed /ɪkˈspɛɹ.ɪ.mɛn.tə/. Rarity is why readers land here mid-draft. Gloss: "A person who experiments.".
The misspelling generator found no plausible variants for experimenter, which points to an orthography that plays by predictable English rules. It is not paired with a close-neighbour confusable in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From experiment + -er. The correct English form is experimenter, spelled E-X-P-E-R-I-M-E-N-T-E-R.
Definition
- 1A person who experiments.
Recorded use
Wiktionary examplesThese source excerpts show how experimenter appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
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'.
In reliable environments, waiting to eat a second marshmallow is likely to be beneficial. However, in environments in which rewards are uncertain, such as when experimenters are unreliable, eating the single marshmallow right away may be beneficial. Thus, impulsivity can be understood as an adaptive response to the contingencies present in an unstable env…
Etymology
From experiment + -er.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "experimenter"?
What does "experimenter" mean?
How do you pronounce "experimenter"?
What is the origin of the word "experimenter"?
Is PlainSpell free to use?
Similar English words by spelling shape
Same letter count and similar misspelling depth for "experimenter", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 12 letters (nearest by frequency rank).