1. a small mass of lymphoid tissue in the nasopharynx (back of the nose and throat), usually in the plural; often enlarged in children and can cause breathing or hearing problems
Usage: commonly used in plural form: adenoids; medical/anatomical term

1. relating to or resembling a gland; of or relating to adenoids
Usage: less common than noun form; medical/technical usage

Examples

• The doctor said my son's adenoids were enlarged and might need to be removed.
• Many children have their adenoids taken out to improve their breathing.
• Swollen adenoids can cause a nasal voice and sleep apnea in young children.
• The adenoid tissue helps fight infections in the respiratory system.
• She had adenoid surgery when she was six years old.
• Adenoid problems often resolve on their own as children grow older.