geiger tube geiger tree • Geikia · · · Info · Definitions · Characters · · geiger tube · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (noun) an ionization chamber contained in a tube in a Geiger counter. Synonyms: Geiger tube, Geiger-Muller tube. · · Noun Definition 1 Characters · · space U+0020 b latin small letter b U+0062 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075