n.
An area of soft, wet, low-lying land, characterized by grassy vegetation and often forming a transition zone between water and land.
[Middle English, from Old English mersc.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
