Noun: ecchymosis (ecchymoses) ,e-ku'mow-sis
- The escape of blood from ruptured blood vessels into the surrounding tissue to form a purple or black-and-blue spot on the skin
"The fall resulted in ecchymosis on her knee"
- The purple or black-and-blue area resulting from a bruise
"The patient's arm showed extensive ecchymosis after the accident"
Derived forms: ecchymoses
Type of: biological process, bruise, contusion, organic process
Encyclopedia: Ecchymosis