the emergency room or ER (US): the part of a hospital where you go for urgent treatment noun
In British English, the "ER" is called either "the casualty department" (or simply "casualty") OR "Accident and Emergency" (A&E).
  • "My name is Dr. Robert Loblaw and I am the on-call physician at the emergency room at Mt."
  • "Edward : Er... what?"
  • "Things were slow in the E.R. today."
  • "Er, no."
  • "My wife Sophie is going to be at the ER all day, and I can't find anyone else to take him."

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