Entry from US English dictionary
A moldable silicone-based substance, sold chiefly as a toy, with remarkable properties of stretching and bouncing.
- A popular product that uses a silicon-based inorganic polymer is Silly Putty.
- With over 300 million sold, it's also one of the most loved toys of all time - Silly Putty.
- In my lecture I tell the story of how Silly Putty was invented (a World War II experiment to create a synthetic rubber gone awry.)
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