down·stream  (doun str ēm )
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adv.1. Toward or closer to the mouth of a stream; in the direction of the current: floated downstream. 2. At a later point in a production process or supply chain. adj.1. Being or moving closer to the mouth of a stream; in the direction of the current. 2. Later in a production process or supply chain. |
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:
Indo-European Roots
Semitic Roots
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.
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