refractometer
noun
re·frac·tom·e·ter ˌrē-ˌfrak-ˈtä-mə-tər 
ri-
: an instrument for measuring refractive indices (as for identification or the determination of sugar content)
refractometric
ri-ˌfrak-tə-ˈme-trik
adjective refractometry
ˌrē-ˌfrak-ˈtä-mə-trē
noun ri-
Example Sentences
Recent Examples on the Web Alcohol content of the distillate should be in the region of 50% ABV., which can be checked with a refractometer. 
Megan Murphy, Robb Report, 21 Apr. 2021 Puro slides another portion of the soil into a portable refractometer to measure the carbon content using a newer method calledQuick Carbonthat's being tested as a rapid means for measuring carbon in the field. Todd Nelson, Star Tribune, 22 Feb. 2021 Puro slides another portion of the soil into a portable refractometer to measure the carbon content using a newer method called Quick Carbon that’s being tested as a rapid means for measuring carbon in the field. Meg Wilcox, Smithsonian Magazine, 20 Feb. 2021 Now, some Dunkin’ shops use digital refractometers to determine if coffee meets specifications. Eric Morath, WSJ, 24 June 2018 Theft, Westway Drive: The president of Optics Incorporated reported receiving a fraudulent purchase order four $36,000 refractometers that were sent to a New York address. Brian Lisik/special To Cleveland.com, cleveland.com, 2 Apr. 2018 This is a little nerdy, but a refractometer uses light to identify the components and ingredient levels in solutions, which is super helpful for calculating the percentage of alcohol in a beverage. Alex Delany, Bon Appetit, 29 Jan. 2018 After finding the right water quality for sea salt production, the next step is testing the salinity with a refractometer—in simple terms, testing the saltiness. Jessica Colley Clarke, CNT, 17 Aug. 2017 See More
Megan Murphy, Robb Report, 21 Apr. 2021 Puro slides another portion of the soil into a portable refractometer to measure the carbon content using a newer method calledQuick Carbonthat's being tested as a rapid means for measuring carbon in the field. Todd Nelson, Star Tribune, 22 Feb. 2021 Puro slides another portion of the soil into a portable refractometer to measure the carbon content using a newer method called Quick Carbon that’s being tested as a rapid means for measuring carbon in the field. Meg Wilcox, Smithsonian Magazine, 20 Feb. 2021 Now, some Dunkin’ shops use digital refractometers to determine if coffee meets specifications. Eric Morath, WSJ, 24 June 2018 Theft, Westway Drive: The president of Optics Incorporated reported receiving a fraudulent purchase order four $36,000 refractometers that were sent to a New York address. Brian Lisik/special To Cleveland.com, cleveland.com, 2 Apr. 2018 This is a little nerdy, but a refractometer uses light to identify the components and ingredient levels in solutions, which is super helpful for calculating the percentage of alcohol in a beverage. Alex Delany, Bon Appetit, 29 Jan. 2018 After finding the right water quality for sea salt production, the next step is testing the salinity with a refractometer—in simple terms, testing the saltiness. Jessica Colley Clarke, CNT, 17 Aug. 2017 See More Word History
Etymology
International Scientific Vocabulary
First Known Use
1842, in the meaning defined above
Medical Definition
refractometer
noun
re·frac·tom·e·ter ˌrē-ˌfrak-ˈtäm-ət-ər, ri-
: an instrument for measuring indices of refraction