holocaust
n
(a) [C] large-scale destruction, esp by fire; great loss of human life 大规模的毁灭(尤指由火灾造成的); 大批的人的死亡
fear a nuclear holocaust 惧怕核灾难.
(b) the Holocaust [sing]
the mass killing of Jews by the Nazis before and during World War II (第二次世界大战之前及大战期间, 纳粹对犹太人的)大屠杀.