proton
pro·ton/ˈpɹoʊ.tɑn/noun
proton is spelled P-R-O-T-O-N, 2 syllables: pro·ton. The wrong spelling people search most is protron: about 170 Bing searches a month in the United States (September 2025 to August 2026), about 1 in 313 of all searches for the word. Proton is a noun meaning “A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic…”. The plural of proton is protons.
How many letters and syllables are in proton?
| Letters | 6: P-R-O-T-O-N |
|---|---|
| Syllables | 2: pro·ton |
| In writing | 2.6 times per million words; the 16,687th most frequent word form |
| Wrong spellings searched | 1; the most searched, protron, about 170 Bing searches a month (all of them) |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026); rhymes and same-letter words are computed by PlainSpell from its own word list.
How do you spell proton?
Proton is spelled P-R-O-T-O-N. One wrong spelling is searched or written often enough to measure; together they are about 1 in 310 of the searches for proton in either form.
Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
How common is proton?
Proton appears 2.6 times per million words in written English, the 16,687th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce proton?
- UK /ˈpɹəʊ.tɒn/
- US /ˈpɹoʊ.tɑn/
Proton has 2 syllables, split pro·ton in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-proton.ogg, Wikimedia Commons (author and licence on each file's page).
What rhymes with proton?
No other word on PlainSpell ends in the same sounds as proton (/oʊtɑn/).
Spelled with the same letters in another order: pronto.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of proton
- protons plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does proton mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element, composed of two up quarks and a down quark.
- 2
The atomic nucleus of protium (hydrogen-1)
- 3
obsoleteSynonym of primordium.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you abbreviate proton?
Wiktionary records one abbreviation of proton: p.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Proton in Spanish, French, German and Portuguese
In the sense positively charged nucleon:
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does proton come from?
Learned borrowing from Ancient Greek πρῶτον (prôton), neuter of πρῶτος (prôtos, “first”). (physics): Coined by New Zealand-British scientist Ernest Rutherford in 1920, in analogy with electron (1891), and with an additional intention of honoring English chemist William Prout.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).