Dictionary.net

• A flat stone so thrown along the surface of water as to skip from point to point before it sinks; also, the sport of so throwing stones; - sometimes called ducks and drakes.

2010 - New Age Dictionary Database
By Oddity Software

• A flat stone so thrown along the surface of water as to skip from point to point before it sinks; also, the sport of so throwing stones; - sometimes called ducks and drakes.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.