hydrogenation
"hydrogenation" is a 13-letter English headword indexed on PlainSpell.
The verdict
“hydrogenation” is uncommon English (frequency #63,691 among 2,646 “H” headwords), classed as a noun. The kind of spelling people second-guess.
- #63,691
- frequency rank, English
- 2,646
- “H” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The chemical reaction of hydrogen with another substance, especially with an unsaturated organic compound, and usually under the influence of temperature, pressure and catalysts.
Corpus desk
Index EN-hydrogenation · hydrogenation · English
hydrogenation · rank #63,691 · 0 variants · 0 confusables
- FREQ-RARE #63,691
- LEN-MEGA 13 letters
- VOW-6 6 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,646
- PHOTO-FINISH hyperthermia
Nearest frequency peer: hyperthermia (+2 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 “hydrogenation”
Sparse band: bars invert rank so rarer forms read shorter
- Honshu
Honshu
36,316 corpus weight
- hosanna
hosanna
36,315 corpus weight
- hydrogenati…
hydrogenation
36,310 corpus weight
- hyperthermia
hyperthermia
36,308 corpus weight
- hyperthyroi…
hyperthyroidism
36,307 corpus weight
- IDM
IDM
36,305 corpus weight
What this shows Long-tail view: where “hydrogenation” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | hydrogenation |
| Language | English |
| Part of speech | Noun |
| Letters | 13 |
| Frequency rank | #63,691 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “hydrogenation” in English
Rare enough to double-check
hydrogenation is uncommon English at frequency #63,691 among 2,646 “H” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The chemical reaction of hydrogen with another substance, especially with an unsaturated organic compound, and usually under the influence of temperature, pressure and catalysts.".
The misspelling generator found no plausible variants for hydrogenation, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From hydrogen + -ation. The correct English form is hydrogenation, spelled H-Y-D-R-O-G-E-N-A-T-I-O-N.
Definition
- 1The chemical reaction of hydrogen with another substance, especially with an unsaturated organic compound, and usually under the influence of temperature, pressure and catalysts.
Etymology
From hydrogen + -ation.
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.
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "hydrogenation", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 13 letters (nearest by frequency rank).