pneumococcus
noun
pneumococcus is spelled P-N-E-U-M-O-C-O-C-C-U-S: 12 letters. It appears about once in every 37 million words in written English, the 187,122nd most frequent word form (wordfreq, 2021 data). As a noun, pneumococcus means “A gram-positive bacterium, Streptococcus pneumoniae, that causes pneumonia and other infectious diseases” (English Wiktionary, September 2026). The plural of pneumococcus is pneumococci.
How many letters and syllables are in pneumococcus?
| Letters | 12: P-N-E-U-M-O-C-O-C-C-U-S |
|---|---|
| In writing | about once in every 37 million words; the 187,122nd most frequent word form |
| Wrong spellings searched | none measured in search |
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).
How common is pneumococcus?
Pneumococcus appears about once in every 37 million words in written English, the 187,122nd 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).
Forms of pneumococcus
- pneumococci plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does pneumococcus mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A gram-positive bacterium, Streptococcus pneumoniae, that causes pneumonia and other infectious diseases
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Pneumococcus in Spanish, French, German and Portuguese
In the sense Streptococcus pneumoniae:
| Language | Words |
|---|---|
| French | pneumocoque |
| Spanish | neumococo |
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 pneumococcus come from?
From pneumo- + -coccus.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).