noun. 1. semi-deafness, particularly to deeper tones. 2. any irregularity of hearing separate from primary deafness, like localis, disability regarding figuring out the direction from which a sound originates.
noun. 1. semi-deafness, particularly to deeper tones. 2. any irregularity of hearing separate from primary deafness, like localis, disability regarding figuring out the direction from which a sound originates.