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O·ma·ha 1

 (ō′mə-hô′, -hä′)
n. pl. Omaha or O·ma·has
1. A member of a Native American people inhabiting northeast Nebraska since the late 1600s. The Omaha are closely related to the Ponca in language and history.
2. The Siouan language of the Omaha.

[Omaha umóNhoN.]

O′ma·ha′ adj.

O·ma·ha 2

 (ō′mə-hô′, -hä′)
A city of eastern Nebraska on the Missouri River and the Iowa border. Founded in 1854 with the opening of the Nebraska Territory, it grew as a supply point for westward migration, especially after the coming of the railroad in 1869. It was territorial capital from 1855 to 1867.

O·ma·ha 3

 (ō′mə-hô′, -hä′)
A poker game in which each player is dealt four cards and must combine two of these cards with three community cards (out of five total community cards) to form the best five-card hand. Also called Omaha hold'em.

[Probably after Omaha, on the model of Texas hold'em, although the reason for so naming the game is not known.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.