Able to cause death; deadly; fatal.

• Having a death-causing effect.

致命的；能导致死亡的。

• 有杀伤致死能力的。

Extremely dangerous or harmful.

• Powerfully effective to a devastating degree.

极其有效或破坏力强的。

• 尤其在竞技中令人畏惧的。

Genetics, noun: an allele that kills the organism carrying it.

遗传学：使携带个体致死的等位基因。