Hormuz Strait of

Hor·muz

 (hôr-mo͞oz′, hôr′mŭz′), Strait of also Strait of Or·muz (ôr-mo͞oz′, ôr′mŭz′)
A strategic waterway linking the Persian Gulf with the Gulf of Oman. The narrow strait controls oceangoing traffic to and from the oil-rich Gulf States.
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.