verb · to destroy completely, eliminate, or put an end to (often used in military, biological, or abstract contexts)

由于采取了有效的防疫措施，天花已被人类消灭。

verb · the conversion of matter and antimatter into energy in the context of quantum field theory

这种新型药水可以有效地消灭碗筷上的细菌。

verb · to die out, disappear, or cease to exist

这些古老的部落文化在现代文明的影响下逐渐消灭了。