Meanings
proper noun
- A peninsula in Vallejo, California, United States, northeast of San Francisco.
Origin
From Spanish Isla de la Yegua (literally “Island of the Mare”), named by General Mariano Guadalupe Vallejo, the Mexican Commandante for Northern California, whose prized white mare was found on the island, having swum ashore after having been lost.
Full word history & related roots →Cite this entry
APA
Mare Island. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Mare%20Island
MLA
“Mare Island.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Mare%20Island. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Mare Island,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Mare%20Island.
Source: Mare Island on Wiktionary, CC BY-SA 4.0.