trau·ma (trômə, trou-)
n. pl. trau·mas or trau·ma·ta (-mə-tə)
a. Serious injury to the body, as from physical violence or an accident: abdominal trauma.
b. Severe emotional or mental distress caused by an experience: He experienced trauma for years after his divorce.
a. An experience that causes severe anxiety or emotional distress, such as rape or combat: memories that persist after a trauma occurs.
b. An event or situation that causes great disruption or suffering: the economic trauma of the recession.
[Greek; see terə-1 in the Appendix of Indo-European roots.]
trau·matic (-mătĭk) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.