English dictionary



Hint: Asterisk (*) is a wildcard. Asterisk substitutes zero or more characters.

English noun: Er

1. Er (substance) a trivalent metallic element of the rare earth group; occurs with yttrium


Synonymsatomic number 68, erbium


Broader (hypernym)metal, metallic element


Substance meronymfergusonite, gadolinite, ytterbite

2. ER (artifact) a room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatment


Synonymsemergency room


Broader (hypernym)hospital room









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