steam up

Science Dictionary
steam   (stēm)  Pronunciation Key 
  1. Water in its gaseous state, especially at a temperature above the boiling point of water (above 100°C, or 212°F, at sea level). See Note at vapor.

  2. A mist of condensed water vapor.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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