noun. the purple or black-and-blue area resulting from a bruise.
noun. the escape of blood from ruptured blood vessels into the surrounding tissue to form a purple or black-and-blue spot on the skin.
1. Noun, singular or mass These bruise types differ as ecchymosis is a blood collection under the skin causing a purple, flat bruise, while hematomas are more of a blood clot causing a painful, raised area.
