acquired deafness मीनिंग इन हिंदी

I couldn't find the specific term you were looking for, but the only thing I can think of would be " acquired deafness ", but that's only an indicator of when, not the what.
Cochlear implants are only approved for people who are deaf in both ears; as of 2014 a cochlear implant had been used experimentally in some people who had acquired deafness in one ear after they had learned how to speak, and none who were deaf in one ear from birth; clinical studies as of 2014 had been too small to draw generalizations from.
A "'cochlear implant "'( "'CI "') is a surgically implanted electronic device that provides a sense of sound to a person who is profoundly deaf or severely hard of hearing in both ears; as of 2014 they had been used experimentally in some people who had acquired deafness in one ear after learning how to speak.