stauroscopen.
/ˈstɔːrəʊskəʊp/ An instrument used for the microscopic examination of rocks (see quot. 1879). Also attributive.
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stauroscope1875
stauro-microscope1879
1875 E. H. Knight Pract. Dict. Mech.
1877 Catal. Special Coll. Sci. Apparatus S. Kensington Mus. (ed. 3) 220 Stauroscope, according to the design of F. von Kobell, executed by Wiedemann.
1879 F. Rutley Study of Rocks ix. 81 The determination of the crystallographic system to which a mineral belongs, and the exact position of the planes of vibration and of the axes of elasticity, are best effected by means of the stauroscope.
1888 F. Rutley Rock-forming Minerals 48 The most perfect arrangement yet devised for this purpose is Bertrand's stauroscope eye-piece.
Derivatives
ˌstauroˈscopic adj. of, pertaining to or made by means of the stauroscope.
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the world > physical sensation > sight and vision > optical instruments > instruments for observing > [adjective] > stauroscope
stauroscopic1879
1879 F. Rutley Study of Rocks vii. 56 A small plate of calcspar for making stauroscopic measurements.
1879 F. Rutley Study of Rocks ix. 81 The stauroscopic examination of thin sections of minerals.
ˌstauroˈscopically adv. by means of the stauroscope.
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the world > physical sensation > sight and vision > optical instruments > instruments for observing > [adverb] > stauroscope
stauroscopically1879
1879 F. Rutley Study of Rocks ix. 84 The different crystallographic systems may be determined stauroscopically in the following way.
This entry has not yet been fully updated (first published 1915; most recently modified version published online December 2021).
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n.1875