Trauma definition first definition
Full Definition of TRAUMA. 1. a: an injury (as a wound) to living tissue caused by an extrinsic agent b: a disordered psychic or behavioral state resulting from severe mental or emotional stress or physical injury. 2.: an agent, force, or mechanism that causes trauma. â trauÂ·matÂ·ic \trÉ-Ëma-tik, troÌ-, trauÌ-\ adjective. She never fully recovered from the trauma of her experiences. 2  an accident victim with severe head trauma. 3  repeated trauma to a knee. 4  The accident victim sustained multiple traumas.