catheter Catherine-wheel window • catheter fever · · · Info · Definitions · Characters · · catheter · · Text Latin · · Script 8 · · Length 3 · · Syllables Definitions · · · (noun) a thin flexible tube inserted into the body to permit introduction or withdrawal of fluids or to keep the passageway open. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 r latin small letter r U+0072 t latin small letter t U+0074