1. occurring or existing before symptoms of a disease appear; relating to the period before clinical signs become evident
Usage: medical/clinical term; commonly used in genetics and disease screening

Examples

• Genetic testing can identify presymptomatic carriers of hereditary diseases.
• The presymptomatic phase of Alzheimer's disease may last for years before memory loss becomes noticeable.
• Doctors recommended presymptomatic screening for family members at risk of the condition.
• Presymptomatic treatment may help prevent or delay the onset of serious illness.
• The patient was diagnosed during the presymptomatic stage, allowing for early intervention.
• Presymptomatic individuals often show no signs of disease despite carrying the genetic mutation.