1. (astronomy) an observational branch of astronomy, which deals with the study of X-ray emission

Encyclopedia: X-ray astronomy

• beyond
• beyond a doubt
• beyond a shadow of a doubt
• beyond control
• beyond doubt
• beyond measure
• beyond the pale
• bezant
• bezel
• Bezier curve
• bezique
• bezoar
• bezoar goat
• bezzant
• BFPO
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• Bhadon
• Bhadrapada
• Bhaga
• Bhagavad-Gita
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