Synonyms for ra

Noun

1. radium, Ra, atomic number 88, metallic element, metal

usage: an intensely radioactive metallic element that occurs in minute amounts in uranium ores

2. right ascension, RA, celestial longitude, angular distance

usage: (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"

3. Ra, Re, Egyptian deity

usage: ancient hawk-headed Egyptian sun god; a universal creator