from The American Heritage® Dictionary of the English Language, 4th Edition
- A state of the northwest United States. It was admitted as the 43rd state in 1890. Explored by the Lewis and Clark expedition in 1805, the region was held jointly by Great Britain and the United States from 1818 to 1846. Idaho became a separate territory in 1863. Boise is the capital and the largest city. Population: 1,500,000.
- n. See russet Burbank.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A state of the United States of America. Capital: Boise.
- n. An Idaho potato.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a state in the Rocky Mountains
After Idaho, where it is chiefly grown.(American Heritage® Dictionary of the English Language, Fourth Edition)
When a name was being selected for new territory, eccentric lobbyist George M. Willing suggested "Idaho," which he claimed was a Native American term meaning "gem of the mountains". It was later revealed Willing had made up the name himself. (Wiktionary)