Extra Rare

Views Updated: Dec 15, 2025

Key Facts

Abbreviation
ER
Pronunciation
/ˈɛkstrə rɛr/
Category
Miscellaneous
Related Field
Food & Nutrition

Examples in Context

  1. That can lead to patients demanding extra testing, as they worry of rare conditions they read about online but which their doctor has discounted in their particular health scenario.
  2. The extra stabilizing ability and good color remaining ability of rare earth PVC stabilizer was shown clearly by analysis and comparison.

Other meanings of ER