ER
zelfstandig naamwoord
1 Er
A trivalent metallic element of the rare earth group; occurs with yttrium.
synoniemen: atomic number 68, erbium.
Nederlands: erbium
Pools: Er, erb
2 ER
A room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatment.
synoniem: emergency room.
Nederlands: CSO, centrale spoedopvang, SEH, spoedeisende hulp
Pools: pogotowie
Vind elders meer over ER: etymologie - rijmwoorden - Wikipedia.
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