1. The escape or discharge of blood, lymph, or other fluid from a vessel into surrounding tissue.
Usage: medical/anatomical term; commonly used in clinical and pathological contexts
2. The act of pouring out or spilling, especially of lava from a volcano.
Usage: geological term; less common in everyday usage

Examples

• The patient showed signs of extravasation around the injection site.
• Extravasation of blood beneath the skin can cause bruising and swelling.
• The doctor examined the extravasation to determine if the IV had infiltrated.
• Volcanic extravasation created new land formations along the coast.
• Extravasation of fluid into the surrounding tissues required immediate medical attention.