radio astronomy radio antenna • radioautograph · · · Info · Definitions · Characters · · radio astronomy · · Text Common · · Latin · · Scripts 15 · · Length 6 · · Syllables Definitions · · · (noun) the branch of astronomy that detects and studies the radio waves emitted by celestial bodies. Synonyms: radio astronomy. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079