barium fluoride


Definition of barium fluoride 

: a white, solid, crystalline compound BaF2 that is used as a material in optics (as in lenses) and as a flux (see flux entry 1 sense 6) in some enamels Barium fluoride would resist the cesium, but it was suitable only for the windows, not for the entire vacuum cell containing the cesium.— Nick Taylor, Laser, 2000

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First Known Use of barium fluoride

1868, in the meaning defined above

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The first known use of barium fluoride was in 1868

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exaggeratedly or childishly emotional

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