radiometer
"radiometer" is a 10-letter English headword indexed on PlainSpell.
The verdict
“radiometer” is uncommon English (frequency #85,683 among 3,094 “R” headwords), classed as a noun. The kind of spelling people second-guess.
- #85,683
- frequency rank, English
- 3,094
- “R” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A device that measures radiant energy.
Corpus desk
Index EN-radiometer · radiometer · English
radiometer · rank #85,683 · 0 variants · 0 confusables
- FREQ-RARE #85,683
- LEN-MEGA 10 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,094
- PHOTO-FINISH radicalize
Nearest frequency peer: radicalize (-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 “radiometer”
Sparse band: bars invert rank so rarer forms read shorter
- Quitman
Quitman
14,322 corpus weight
- radicalize
radicalize
14,319 corpus weight
- radiometer
radiometer
14,318 corpus weight
- ramus
ramus
14,315 corpus weight
- Rastafarian
Rastafarian
14,314 corpus weight
- Rattray
Rattray
14,313 corpus weight
What this shows Long-tail view: where “radiometer” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | radiometer |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Frequency rank | #85,683 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “radiometer” in English
Rare enough to double-check
radiometer is uncommon English at frequency #85,683 among 3,094 “R” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A device that measures radiant energy.".
The misspelling generator found no plausible variants for radiometer, a straightforward case of a spelling with little room for common typos. No close-neighbour confusable shows up for this headword in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From radio- + -meter. The correct English form is radiometer, spelled R-A-D-I-O-M-E-T-E-R.
Definition
- 1A device that measures radiant energy.
Recorded use
Wiktionary exampleThese source excerpts show how radiometer appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The geometry of the cone θ and the irradiance at the image of the carbon block were used to determine the absolute steradiancy of the energy in the cone θ as a radiometer calibration value.
Etymology
From radio- + -meter.
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "radiometer", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency rank).