— syntonically , adv.
/sin ton"ik/ , adj.
1. Elect. adjusted to oscillations of the same or a particular frequency.
2. Psychiatry. of or denoting a personality characterized by normal emotional responsiveness to the environment.
Also, syntonical, syntonous .
[ 1890-95; sýnton ( os ) attuned to, lit., stretched together (verbid of synteínein to harmonize, equiv. to syn- SYN- + ton- (deriv. of teínein to stretch; see TONE) + -os adj. suffix) + -IC ]