er

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Proper noun

1. {{surname|en}}.

Noun

1. {{lb|en|baseball}} {{init of|en|earned run}}.
2. {{lb|en|biology}} {{initialism of|en|endoplasmic reticulum}}.
3. {{lb|en|computing}} {{initialism of|en|[[entity]]-[[relationship]]}}.
4. {{lb|en|medicine}} {{initialism of|en|emergency room}}.
5. {{lb|en|biochemistry}} {{init of|en|[[estrogen]] [[receptor]]}}.
6. {{lb|en|physics}} {{init of|en|Einstein-Rosen bridge}}.
7. {{lb|en|military}} {{initialism of|en|[[enhanced]] [[radiation]]}}.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.