retarder
noun
retarder is spelled R-E-T-A-R-D-E-R: 8 letters. It appears about once in every 18 million words in written English, the 127,184th most frequent word form (wordfreq, 2021 data). As a noun, retarder means “Something which retards or slows” (English Wiktionary, September 2026). The plural of retarder is retarders.
How many letters and syllables are in retarder?
| Letters | 8: R-E-T-A-R-D-E-R |
|---|---|
| In writing | about once in every 18 million words; the 127,184th 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 retarder?
Retarder appears about once in every 18 million words in written English, the 127,184th 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 retarder?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-retarder.wav, Wikimedia Commons (author and licence on each file's page).
Forms of retarder
- retarders plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does retarder mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Something which retards or slows.
The substance acted as a retarder to the chemical reaction because it radically changed the pH.
- 2
A device for slowing down large trucks, lorries, buses, shunted railway wagons.
- 3
A refrigerator used to slow down proofing of yeast when making dough.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does retarder come from?
From retard + -er.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).