|1.||[ 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 minutes and second|
"one hour of right ascension equals fifteen degrees"
|Related terms:||angular_distance astronomy|
|2.||[ noun ] (chemistry) an intensely radioactive metallic element that occurs in minute amounts in uranium ores|
|Related terms:||metallic_element uranium_ore|
|3.||[ noun ] Last name, frequency rank in the U.S. is 28459|
|4.||[ noun ] (religion,antiquity) ancient hawk-headed Egyptian sun god; a universal creator|