inlet on the S coast of Oahu, Hawaii, near Honolulu: site of a U.S. naval base bombed by Japan, Dec. 7, 1941
See Pearl Harbor in American Heritage Dictionary 4
An inlet of the Pacific Ocean on the southern coast of Oahu, Hawaii, west of Honolulu. It became the site of a naval base after the United States annexed Hawaii in 1900. On Sunday, December 7, 1941, Japanese planes attacked the base, and the United States entered World War II the following day.