The Collaborative International Dictionary
Syntonical
Syntonic \Syn*ton"ic\, a. (Physics) Of or pert. to syntony; specif., designating, or pert. to, a system of wireless telegraphy in which the transmitting and receiving apparatus are in syntony with, and only with, one another. -- Syn*ton"ic*al, a. -- Syn*ton"ic*al*ly, adv.