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Interjection: er  ur
  1. Expression of hesitation
    "I, er, forgot what I was going to say";
    - um, uh
Noun: Er
  1. A trivalent metallic element of the rare earth group; occurs with yttrium
    - erbium, atomic number 68
Noun: ER
Usage: N. Amer
  1. Emergency department in a hospital or clinic, staffed and equipped to provide emergency care to people requiring immediate medical treatment
    - emergency room [N. Amer], emergency [N. Amer], casualty [Brit], accident and emergency [Brit]

Sounds like: err, U

Type of: hospital room, metal, metallic element

Part of: fergusonite, gadolinite, ytterbite

Encyclopedia: Er, Orba, Feron and Fergna

ER