- syntonizing coil
- Syntonizer Syn"to*niz`er, n. (Physics) One that syntonizes; specif., a device consisting essentially of a variable inductance coil and condenser with a pair of adjustable spark balls, for attuning the time periods of antenn[ae] in wireless telegraphy (called also {syntonizing coil}). [Webster 1913 Suppl.]
The Collaborative International Dictionary of English. 2000.