Dictionary.com
definitions

anacusis

[an-uh-kyoo-sis]
noun Medicine/Medical.
  1. total deafness.

Origin of anacusis

From New Latin; see origin at an-3, acoustic, -sis
Related formsan·a·cu·sic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
anacusis in Medicine

anacusis

n.
  1. Complete deafness.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.