cathode irradiation

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• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …   Universalium

• Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr …   Wikipedia

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• rayon — 1. rayon [ rɛjɔ̃ ] n. m. • 1531; de rai, lat. radius 1 ♦ Trace de lumière en ligne ou en bande. ⇒ 1. jet, rai, 1. trait. Un rayon de soleil, de lune. « Parfois un rayon perçait les nuages » (Green). « en apercevant, par la fente d un auvent, un… …   Encyclopédie Universelle

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