deuterium
/djuːˈtɪəɹɪəm/
"deuterium" is a 9-letter English headword indexed on PlainSpell.
The verdict
“deuterium” has 12 generated spelling variants in the English index at frequency #43,601. The variants make it a useful spelling check.
- #43,601
- frequency rank, English
- 26,416
- “D” headwords
- 12
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An isotope of hydrogen with one proton and one neutron in each atom - 21H.
| Property | Value |
|---|---|
| Headword | deuterium |
| Language | English |
| Part of speech | Noun |
| IPA | /djuːˈtɪəɹɪəm/ |
| Letters | 9 |
| Frequency rank | #43,601 |
| Misspellings tracked | 12 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “deuterium” sits in English frequency
A misspelling magnet
The generator records 12 spelling variants around deuterium (IPA /djuːˈtɪəɹɪəm/), anoun. Corpus frequency is #43,601 among 26,416 “D” headwords. Wiktionary lists 2 senses, so context still picks the gloss.
Our generated misspelling index lists 12 likely wrong-spelling variants for deuterium, with forms such as "ddeuterium", "detuerium", and "deuetrium". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. This headword has no recorded confusable partner, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From deutero- + -ium. Coined by American physical chemist Harold Urey, from Ancient Greek δεύτερος (deúteros, “second”). The correct English form is deuterium, spelled D-E-U-T-E-R-I-U-M.
Definition
- 1An isotope of hydrogen with one proton and one neutron in each atom - 21H.
- 2An atom of this isotope.
Etymology
From deutero- + -ium. Coined by American physical chemist Harold Urey, from Ancient Greek δεύτερος (deúteros, “second”).
This word in other languages
Common misspellings
Also misspelled as:
- ddeuterium
- detuerium
- deuetrium
- deuteirum
- deuterimu
- deuteriumm
- deuterrium
- deuteruim
- deutreium
- deutterium
- dueterium
- eduterium
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of deuterium - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "deuterium"?
What does "deuterium" mean?
What are common misspellings of "deuterium"?
How do you pronounce "deuterium"?
What is the origin of the word "deuterium"?
Is PlainSpell free to use?
Using “deuterium”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is D-E-U-T-E-R-I-U-M - every other letter order is a misspelling in standard orthography.
- Say it as /djuːˈtɪəɹɪəm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Same frequency band
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.