apertometern.
/apəˈtɒmɪtə/ An appliance attached to a microscope for determining the angular aperture of object-glasses.
ΘΚΠ
the world > physical sensation > sight and vision > optical instruments > magnification or magnifying instruments > [noun] > microscope > combined with other instruments
microspectroscope1867
polarization microscope1870
apertometer1880
1880 Nature 4 Mar. 433/1 Some remarks on the apertometer.
1881 Athenæum 26 Nov. 707/3 An Abbe apertometer of dense glass for measuring apertures up to 1·50 N.A.
This entry has not yet been fully updated (first published 1885; most recently modified version published online March 2018).
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n.1880- non-inferentially
- non-inflammability
- non-inflammable
- non-inflammatory
- non-inflected
- non-inflectional
- non-influence
- non-information
- non-nitrogenized
- non-nitrogenous
- non-normal
- non-normality
- non-normally
- non-novel
- non-noxious
- non-nuclear
- non-nucleated
- non-nucleoside
- non-null
- non-numeric
- non-numerical
- non-nutationally
- non-nutritious
- non-nutritive
- non-obedience