(c.1639–1713), English clock- and watchmaker. He made one of the first balance-spring watches and made two large pendulum clocks for the Royal Greenwich Observatory.
Definition of Tompion, Thomas in US English:
Tompion, Thomas
proper nounˈtämpēən
(c.1639–1713), English clock- and watchmaker. He made one of the first balance-spring watches and made two large pendulum clocks for the Royal Greenwich Observatory.