Last Updated:2025/11/20
(baseball) Initialism of earned run. / (biology) Initialism of endoplasmic reticulum. / (computing) Initialism of entity-relationship. / (medicine) Initialism of emergency room.
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ER
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Source Word
ER
Noun
abbreviation
alt-of
countable
initialism
uncountable
Japanese Meaning
(野球)自責点 / (生物学)小胞体 / (コンピューティング)エンティティ・リレーションシップ / (医学)救急治療室
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( plural )