• (hearing loss) A general term for the complete or partial loss of the ability to hear from one or both ears.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• A decreased magnitude of the sensory perception of sound.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2021
• Partial or complete loss of the ability to detect or understand sounds resulting from damage to the outer, middle, or inner ear structures. Causes include exposure to loud noise, ear infections, injuries to the ear, genetic, and congenital disorders.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• (hearing impaired) A disorder characterized by partial or complete loss of the ability to detect or understand sounds resulting from damage to ear structures.
  Common Terminology Criteria for Adverse Events
  U.S. National Institutes of Health, 2021
• Worldwide, about half a billion people (almost 8% of the world's population) have hearing loss (1). More than 10% of people in the US have some degree of hearing loss that compromises their daily communication, making it the most common sensory disorder. About 1/800 to 1/1000 neonates are born with severe to profound hearing loss. Two to...
  Merck Manuals
  Merck & Co., Inc., 2020
• Hearing loss is more prevalent than diabetes mellitus, myelomeningocele, all pediatric cancers, and numerous other medical conditions. However, medical professionals learn little about hearing impairment, about how to advise parents of children who are deaf or hard of hearing, or about the special considerations needed in the care of...
  Medscape
  WebMD, 2019
• Hearing loss that occurs gradually as you age (presbycusis) is common. About one-third of people in the United States between the ages of 65 and 75 have some degree of hearing loss. For those older than 75, that number is approximately 1 in 2.
  Mayo Clinic
  Mayo Foundation for Medical Education and Research