What does Deafness, congenital mean in medical term?

Deafness, congenital means: It is possible to acquire deafness through genetic factors. It could be due to a delayed-onset type of genetic deafness. Noise damage can cause acquired deafness.
(in Medical Dictionary)

What else does Deafness, congenital mean?

Congenital or acquired deafness is only a distinction that identifies the moment the deafness occurs. The distinction does not indicate if the deafness was genetically inherited.
(in Medical Dictionary)

It is possible for congenital hearing loss to be genetic. It could be due to a condition called Waardenburg syndrome, which is a genetic disorder that causes hearing loss in people with white hair. Congenital hearing loss could also be caused by something like the rubella virus, which was passed to the mother during pregnancy.
(in Medical Dictionary)

Contrast congenital hearing loss with acquired deafness, which is acquired after birth.
(in Medical Dictionary)