refractometricadj.
/rᵻˌfraktəˈmɛtrɪk/, U.S. /rəˌfræktəˈmɛtrɪk/, /riˌfræktəˈmɛtrɪk/ Physics and Chemistry.
Carried out or obtained by means of refractometry; of or relating to a refractometer.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > refraction > [adjective] > concerned with measurement
spectrometric1891
refractometric1893
1893 Jrnl. Chem. Soc. 64 ii. 1 (title) Refractometric observations.
1904 Nature 4 Feb. 334/2 A simple thermostat for use in connection with the refractometric examination of oils and fats.
1944 C. H. Bailey Constituents Wheat viii. 159 Oeholm employed a refractometric method and calculated the molecular weight of starch in the powder form to be 10,000.
1997 Jrnl. Chem. Physics 106 732 A differential refractometric method is used to study the temperature and composition dependence of the adsorptive properties of porous glass in 2-butoxyethanol../water mixtures.
Derivatives
refractoˈmetrically adv. by means of refractometry.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > refraction > [adverb] > by means of refractometry
refractometrically1914
1914 Jrnl. Amer. Chem. Soc. 36 1996 The refractive indices of the two pure substances are not sufficiently different to permit of determining the composition of a given mixture refractometrically with any degree of precision.
1970 Nature 26 Dec. 1269/1 The protein concentration..was also determined refractometrically and gravimetrically.
1989 Appl. Optics 28 1097 Maximum accommodative amplitude..was always 1.50 diopters greater than the refractometrically measured maximum.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).
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adj.1893