refractometer
(noun) measuring instrument for measuring the refractive index of a substance
Source: WordNet® 3.1
refractometer (plural refractometers)
(physics) An optical instrument used to measure the refractive index of a substance.
Source: Wiktionary
Re`frac*tom"e*ter (r`frk*tm"*tr), n. Etym: [Refraction + -meter.] (Opt.)
Definition: A contrivance for exhibiting and measuring the refraction of light.
Source: Webster’s Unabridged Dictionary 1913 Edition
17 May 2025
(noun) sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
Decaffeinated coffee is not caffeine-free. Studies from the National Institute of Health (US) have shown that virtually all decaf coffee types contain caffeine. A 236-ml (8-oz) cup of decaf coffee contains up to 7 mg of caffeine, whereas a regular cup provided 70-140 mg.
