cathode-ray tube cathode-ray oscilloscope • cathodic · · · Info · Definitions · Synonyms · Characters · · cathode-ray tube · · Text Common · · Latin · · Scripts 16 · · Length 5 · · Syllables Definitions · · · (noun) a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen. Synonyms: cathode-ray tube, CRT. · · Noun Definition 1 Synonyms · · · crt · · Synonym 1 Characters · · space U+0020 - hyphen-minus U+002D a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079