| sperrylite | <chemical> An arsenide of platinum occuring in grains and minute isometric crystals of tin-white colour. It is found near Sudbury, Ontario Canada, and is the only known compound of platinum occuring in nature. Origin: Named after F. L. Sperry, who discovered it. Source: Websters Dictionary (01 Mar 1998) |
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| Sperry |
United States engineer and inventor of the gyrocompass (1860-1930)
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| Sperry | United States engineer and inventor of the gyrocompass (1860-1930) |
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