a. Having a well-defined structure or organization; highly organized: a structured environment.
b. Arranged in a definite pattern.
2. Psychology Having a limited number of correct or nearly correct answers. Used of a test.
3. Of or relating to a financial security that uses a complex or unusual financial structure, usually including derivatives, to provide regular interest payments and exposure to specific risks.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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.