A trivalent metallic element of the rare earth group; occurs with yttrium.

synonyms: atomic number 68, erbium.

Dutch: erbium
Polish: Er, erb

A room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatment.

synonym: emergency room.

Dutch: CSO, centrale spoedopvang, SEH, spoedeisende hulp
Polish: pogotowie