1 a wasting away of the body, as from poor nutrition, nerve damage, or disuse. 2  to undergo atrophy; wither; degenerate:His crippled leg began to atrophy with no exercise. 3  to become weakened; decline:Industry atrophied in bad economic times.
Voice Amplifiers / Long Range Listening Devices. Listening devices can be utilized for a variety of purposes including listening through a wall, listening from a distance or enjoying your favorite animals in the wild. More complex systems contain an audio transmitter and receiver.
Health professionals use a variety of names to describe assistive devices: 1  Assistive listening devices (ALDs) help amplify the sounds you want to hear, especially where thereâs a lot of background noise. ALDs can be used with a hearing aid or cochlear implant to help a wearer hear certain sounds better.