RA

English Dictionary -> Letter R -> RA

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RA Definition

• (n) an intensely radioactive metallic element that occurs in minute amounts in uranium ores
• (n) (astronomy) the angular distance eastward along the celestial equator from the vernal equinox to the intersection of the hour circle that passes through the body; expressed in hours and minutes and second; used with declination to specify positions on the
• (n) ancient hawk-headed Egyptian sun god; a universal creator

RA Synonyms

• atomic number 88
• celestial longitude
• Ra
• radium
• Re
• right ascension