Syntonic
Pronunciation : Syn*ton"ic
Part of Speech : a.
Definition : Defn: 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.
(Physics)
Source : Webster's Unabridged Dictionary, 1913