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noun | adjective | to phrases
Etalon n
commun. etalon (optics)
earth.sc. length rod; measuring rod; reference rod
opt. etalon (two highly reflecting parallel plates)
phys. étalon
Etalon adj.
agric. standard
Etalon: 8 phrases in 3 subjects
Measuring instruments2
Optics branch of physics3
Physics3