1. relating to or characterized by involution; involving a turning inward or backward development
Usage: medical; biological
2. relating to the natural shrinking of an organ after its function is complete
Usage: medical

Examples

• The involutional changes in the uterus occur after childbirth.
• Involutional melancholia was once used to describe depression in older adults.
• The thymus undergoes involutional processes as we age.
• Doctors monitored the involutional recovery of the patient’s organs.
• Involutional patterns were observed in the tissue samples.
• The study focused on involutional changes in the aging brain.