| 单词 | er |
| 释义 | Er nnoun.substancea trivalent metallic element of the rare earth group; occurs with yttrium Synset:Er atomic number 68 erbium Substance Holonyms:fergusonite gadolinite ytterbite Hypernyms:metal metallic element Inherited Hypernyms:erbiummetallic elementchemical elementsubstancematterphysical entityentity Inherited Hypernyms:erbiummetallic elementchemical elementsubstancepartrelationabstractionentity nnoun.artifacta room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatment Synset:ER emergency room Hypernyms:hospital room Inherited Hypernyms:emergency roomhospital roomroomareastructureartifactwholeobjectphysical entityentity |
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