virulence

1. N-UNCOUNT Virulence is great bitterness and hostility. 惡毒; 敵意[正式] [oft N 'of' n]

The virulence of the café owner's anger had appalled her. 這位咖啡店老板非常憤怒，充滿敵意，把她給嚇壞了。

2. N-UNCOUNT The virulence of a disease or poison is its ability to harm or kill people or animals. 毒性; 致命性

Medical authorities were baffled, both as to its causes and its virulence. 醫(yī)療當(dāng)局對(duì)其病因及有多致命都還不怎么了解。