| 1. |
(noun) ancient hawk-headed sun god; a universal creator |
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Synonyms: Re |
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Related Words: Egyptian deity |
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| 2. |
(noun) (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 celestial sphere; "one hour of right ascension equals fifteen degrees" |
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Synonyms: celestial longitude, right ascension |
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Related Words: angular distance |
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| 3. |
(noun) an intensely radioactive metallic element that occurs in minute amounts in uranium ores |
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Synonyms: atomic number 88, radium |
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Related Words: metal, metallic element |
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