**Radical sign** — Radical Rad i*cal (r[a^]d [i^]*kal), a. [F., fr. L. radicalis having roots, fr. radix, icis, a root. See {Radix}.] 1. Of or pertaining to the root; proceeding directly from the root. [1913 Webster] 2. Hence: Of or pertaining to the root or… … The Collaborative International Dictionary of English

**radical sign** — ► NOUN Mathematics ▪ the sign which indicates the square root of the number following (or a higher root indicated by a preceding superscript numeral) … English terms dictionary

**radical sign** — sign placed before a number indicating that a root is to be extracted (Mathematics) … English contemporary dictionary

**radical sign** — noun a sign indicating the extraction of a root • Hypernyms: ↑sign … Useful english dictionary

**radical sign** — noun Date: 1668 the sign √ placed before an expression to denote that the square root is to be extracted or that the root marked by an index (as in ∛ for the cube root) is to be extracted … New Collegiate Dictionary

**radical sign** — noun Mathematics the sign √ which indicates the square root of the number following (or a higher root indicated by a preceding superscript numeral) … English new terms dictionary

**radical sign** — rad′ical sign n. Math. math. the symbol √ or ^(1/2) indicating extraction of a root of the quantity that follows it, as √25=5 … From formal English to slang

**radical sign** — Math. the symbol indicating extraction of a root of the quantity that follows it. [1660 70] * * * … Universalium

**radical sign** — /ˌrædɪkəl ˈsaɪn/ (say .radikuhl suyn) noun the symbol √ (initially the first letter of radix) indicating extraction of a root of the following quantity …

**Radical** — Rad i*cal (r[a^]d [i^]*kal), a. [F., fr. L. radicalis having roots, fr. radix, icis, a root. See {Radix}.] 1. Of or pertaining to the root; proceeding directly from the root. [1913 Webster] 2. Hence: Of or pertaining to the root or origin;… … The Collaborative International Dictionary of English