室颤 Traditional form: 室顫 Pinyin (reading): shìchàn Definitions: ventricular fibrillation (V-fib), abbr. for 心室顫動/心室颤动 (xīnshìchàndòng) Characters: 室 - house, home; room, chamber 颤 - to shiver, to tremble; trembling Traditional characters: 室 - house, home; room, chamber 顫 - to shiver, to tremble; trembling