Volume 3: 1771 Edition of the Encyclopedia Britannica!
Sound, a simple perception, or idea, communicated to the soul, by means of the ear, which is the primary organ of hearing. See ANATOMY, p. 295, and PNEUMATICS, p. 488.
Sound, in geography, denotes in general any streight, or inlet, of the sea, between two head-lands. However, the name sound is given, by way of eminence, to the streight between Sweden and Denmark, joining the German ocean to the Baltic, being about four miles over.