Si·be·ri·a 1 (sī-bîrē-ə)
A region of central and eastern Russia stretching from the Ural Mountains to the Pacific Ocean. Inhabited by a variety of peoples including the Ostyak, Chukchi, Evenki, and Yakut, Siberia was annexed by Russia in stages during the 1500s and 1600s. Long used as a place of exile for political prisoners, Siberia began to be developed for its mineral resources after the completion of the Trans-Siberian Railroad in the early 20th century.
Si·beri·an adj. & n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.