1. A group of symptoms that collectively indicate or characterize a disease, disorder, or other condition considered abnormal.
a. A complex of symptoms indicating the existence of an undesirable condition or quality: suffers from fear-of-success syndrome.
b. A distinctive or characteristic pattern of behavior: the syndrome of conspicuous consumption in wealthy suburbs.
3. A group of anatomical and often physiological characteristics of an organism that serve a specific function and are presumed to have evolved together: the angiosperm reproductive syndrome.
[Greek sundromē, concurrence of symptoms, from sundromos, running together : sun-, syn- + dromos, a running.]
syn·dromic (-drōmĭk, -drŏmĭk) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.