Dictionary Definition :
Definition[1]
:
The seven rebellious acts, or deadly sins — shedding a Buddha's blood, killing father, mother, monk, teacher, subverting or disrupting monks, killing an arhat. V. 梵綱經下.
Source
:
A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous
Definition[2]
:
七種大逆不道的行為,即出佛身血、殺父、殺母、殺和尚、殺阿闍梨、破羯摩僧及轉法輪僧、殺聖人(小乘是阿羅漢,大乘是地上菩薩)。
Source
:
陳義孝編, 竺摩法師鑑定, 《佛學常見辭彙》