refractometer
noun
refractometer is a noun meaning “An optical instrument used to measure the refractive index of a substance” (English Wiktionary, September 2026). It is spelled R-E-F-R-A-C-T-O-M-E-T-E-R, and it appears about once in every 22 million words in written English (wordfreq, 2021 data). The plural of refractometer is refractometers.
What does refractometer mean?
noun
- 1
An optical instrument used to measure the refractive index of a substance.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of refractometer
- refractometers plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is refractometer?
Refractometer appears about once in every 22 million words in written English, the 143,405th 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).
Refractometer in Spanish, French, German and Portuguese
In the sense instrument used to measure the refractive index:
| Language | Words |
|---|---|
| French | réfractomètre |
| German | Refraktometer |
| Portuguese | refratómetro, refratômetro |
| Spanish | refractómetro |
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 refractometer come from?
From refract + -o- + -meter.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).