Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

expander

play
noun ex·pand·er \ik-ˈspan-dər\

Definition of expander

  1. :  one that expands; specifically :  any of several colloidal substances (as dextran) of high molecular weight used as a blood or plasma substitute for increasing the blood volume



1862

First Known Use of expander

1862


Medical Dictionary

expander

play
noun ex·pand·er \ik-ˈspan-dər\

Medical Definition of expander

  1. :  any of several colloidal substances (as dextran) of high molecular weight used as a blood or plasma substitute for increasing the blood volume—called also extender




Seen and Heard

What made you want to look up expander? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to depart quickly

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alphabet-pasta-spelling-help

Which is the correct spelling?

accomodate acommodate accommodate acommadate
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ