lethal

Of, pertaining to, or causing death; deadly; mortal; fatal.

Whether modern, industrial man is less or more warlike than his hunter-gatherer ancestors is impossible to determine. The machine gun is so much more lethal than the bow and arrow that comparisons are meaningless.

Any weapon that causes death.

An allele that causes the death of the organism that carries it.

One of the higher alcohols of the paraffine series obtained from spermaceti as a white crystalline solid.