Meaning of coaster

coast•er

Pronunciation: (kō'stur), [key]
— n.
  1. a person or thing that coasts.
  2. a small dish, tray, or mat, esp. for placing under a glass to protect a table from moisture.
  3. a ship engaged in coastwise trade.
  4. a sled for coasting.
  5. a tray for holding a decanter to be passed around a dining table.
  6. See
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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