1. (medicine) impairment of acute hearing in old age
   - presbycousis, presbyacusis

Encyclopedia: Presbycusis

• sincere
• sincerely
• sincerely yours
• sincerity
• sincipital
• sinciput
• Sinclair
• Sinclair Lewis
• Sind
• Sindhi
• sine
• sine curve
• sine die
• sine qua non
• sine wave
• sinecure
• sinecurist
• Sinequan
• sinew
• sinewy
• sinfonia
• sinful
• sinfully
• sinfulness
• sing