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Also found in: medicalAH Medical Dictionary
er definition

er (variously u, ə, ä, etc.; ʉr, ər are spelling pronunciations)

interjection

used when hesitating in speaking, as while searching for a word or collecting one's thoughts: a conventionalized representation of the sound
Er definition

Er

erbium
ER definition

ER

  1. Baseball earned run
  2. emergency room

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Alternate definitions:

medical Er definition - medical

er Usage Examples

Converse of object

  • know: Previously known as, er, Flux Ultra, then as Moth, and now as Flux Ultra again.

Adjective modifier

  • rough: Peroxisomes - derived from rough ER, that contain enzymes that will form hydrogen peroxide - which phagocytic cells use to kill bacteria.

Modifies a noun

  • mwyn: Mae'r targedau hyn wedi eu gosod gan y Llywodraeth a'u gweithredu gan swyddogion er mwyn mesur perfformiad ein hymddiriedolaethau iechyd.

Noun used with modifier

  • oo: Usually, we pretty much hold our own ( oo er ), but don't quite make the placings.
er usage examples (more)

The word usage examples above have been gathered from various sources to reflect current and historical usage. They do not represent the opinions of YourDictionary.com.

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MLA Style

"er." Webster's New World College Dictionary. 2009

  • Your Dictionary. 5 July 2009
  • <www.yourdictionary.com/er>

APA Style

er. (2009). In Webster's New World College Dictionary

  • Retrieved July 5th, 2009, from www.yourdictionary.com/er

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