Palo Alto

American  

[pal-oh al-toh, pah-loh ahl-toh] / ˈpæl oʊ ˈæl toʊ, ˈpɑ loʊ ˈɑl toʊ /

noun

1. a city in W California, SE of San Francisco.

2. a battlefield in S Texas, near Brownsville: first battle of Mexican War fought here in 1846.

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Palo Alto British  

noun

1. a city in W California, southeast of San Francisco: founded in 1891 as the seat of Stanford University. Pop: 57 233 (2003 est)

2. a battlefield in E Mexico, northwest of Monterrey, where the first battle (1846) of the Mexican War took place, in which the Mexicans under General Mariano Arista were defeated by the Americans under General Zachary Taylor

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Example Sentences

Stocks of cybersecurity providers like Palo Alto Networks, CrowdStrike and Zscaler all fell more than 5% on Friday following reports about the new model.

From The Wall Street Journal • Mar. 31, 2026

Palo Alto Networks and CrowdStrike sell a range of security services under one umbrella, and both have made a series of acquisitions in the past year intended to bolster their platforms to thwart AI threats.

From Barron's • Mar. 30, 2026

Palo Alto Networks shares were leading the S&P 500 higher on Monday, while shares of fellow cybersecurity companies were seeing strong rallies as well.

From MarketWatch • Mar. 30, 2026

On Monday, Palo Alto stock rose 6.1% to $156.01, its largest single-day percent increase since April.

From Barron's • Mar. 30, 2026

“I remember driving up from Palo Alto to San Francisco with L. W. Alvarez and Dr. Vannevar Bush when we discussed Oppenheimer’s activities in the nuclear weapons program,” he stated.

From "Big Science" by Michael Hiltzik