An invasive disease is one that spreads to surrounding tissues. An invasive procedure is one in which the body is "invaded", or entered by a needle, tube, device, or scope.
Taber's Cyclopedic Medical Dictionary. 24th ed. Invasive. Philadelphia, PA: F.A. Davis Company; 2021. www.tabers.com/tabersonline/search?st=OSS&q=Invasive. Accessed June 13, 2023.