noun
- An expedition sent by Thomas Jefferson to explore the northwestern territories of the United States; led by Meriwether Lewis and William Clark; traveled from St. Louis to the mouth of the Columbia River from 1803 to 1806. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). lewis and clark expedition. Retrieved September 28, 2026, from http://smartdefine.org/lewis_and_clark_expedition/definitions/1223781 |
| Chicago | WordNet. 2010. "lewis and clark expedition" http://smartdefine.org/lewis_and_clark_expedition/definitions/1223781 (accessed September 28, 2026). |
| Harvard | WordNet 2010, lewis and clark expedition, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/lewis_and_clark_expedition/definitions/1223781>. |
| MLA | WordNet. "lewis and clark expedition" 23 October 2010. Web. 28 September 2026. <http://smartdefine.org/lewis_and_clark_expedition/definitions/1223781> |