a. rare. [f. L. sonor sound + -(I)FIC.] Producing sound; now spec. of insects, producing other than vocal sounds (Cent. Dict.).
1725. Watts, Logick, I. vi. § 3. 136. If he should ask me, why a Clock strikes, and points to the Hour, and I should say, it is by an indicating Form, and sonorific Quality.
1784. Phil. Trans., LXXIV. 215. It may move much faster than sound travels,… and carry on the sonorific vibrations with it.
