In recent reading about the pandemic, suddenly I'm encountering the word 消杀. It doesn't appear in any dictionary I'm aware of, but it seems to be used in formal communication. I also encountered it in this funny translation doing the rounds on WeChat:
My guess is that it means something like "to kill through disinfecting", with my logic: 消 is short for 消毒 = "to disinfect" and 杀 is short for 杀死 = "to kill".
Question: Is 消杀 (xiāoshā) a new word, and what does it mean?