radical sign

noun

: the sign √͞ or √ placed before an expression to denote that the square root is to be extracted or that the root marked by an index (as in ∛ or ∛ for the cube root) is to be extracted

Examples of radical sign in a Sentence

Recent Examples on the Web

These moments were not radical signs of social change, but helped to birth a movement of collective action that would drive the rest of the 19th century through labor unions, social reforms, and women’s suffrage. —Elizabeth M. Reese / Made By History, TIME, 26 Nov. 2024

Trump rally gun suspect shows radical signs Vem Miller, the Nevada man arrested on Saturday at a checkpoint in southern California allegedly en route to a Donald Trump campaign rally, was associated with a far-right movement called the Sovereign Citizens, according to local officials. —Nicole Fallert, USA TODAY, 14 Oct. 2024

This phenomenon is most pronounced between the FANG stocks and the broader global equities market, as this chart, courtesy of MarketEar, shows: The all-equity MSCI World (in white) is seeing something like a square-root symbol (or, take your pick, a radical sign). —Bernhard Warner, Fortune, 23 June 2020

Word History

First Known Use

1668, in the meaning defined above

Kids Definition

radical sign

noun

: the sign √ placed before an expression in mathematics to indicate that its root is to be found