Radical stress

Radical stress
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; reaching to the center, to the foundation, to the ultimate sources, to the principles, or the like; original; fundamental; thorough-going; unsparing; extreme; as, radical evils; radical reform; a radical party. [1913 Webster]

The most determined exertions of that authority, against them, only showed their radical independence. --Burke. [1913 Webster]

3. (Bot.) (a) Belonging to, or proceeding from, the root of a plant; as, radical tubers or hairs. (b) Proceeding from a rootlike stem, or one which does not rise above the ground; as, the radical leaves of the dandelion and the sidesaddle flower. [1913 Webster]

4. (Philol.) Relating, or belonging, to the root, or ultimate source of derivation; as, a radical verbal form. [1913 Webster]

5. (Math.) Of or pertaining to a radix or root; as, a radical quantity; a radical sign. See below. [1913 Webster]

{Radical axis of two circles}. (Geom.) See under {Axis}.

{Radical pitch}, the pitch or tone with which the utterance of a syllable begins. --Rush.

{Radical quantity} (Alg.), a quantity to which the radical sign is prefixed; specifically, a quantity which is not a perfect power of the degree indicated by the radical sign; a surd.

{Radical sign} (Math.), the sign [root] (originally the letter r, the initial of radix, root), placed before any quantity, denoting that its root is to be extracted; thus, [root]a, or [root](a + b). To indicate any other than the square root, a corresponding figure is placed over the sign; thus, [cuberoot]a, indicates the third or cube root of a.

{Radical stress} (Elocution), force of utterance falling on the initial part of a syllable or sound.

{Radical vessels} (Anat.), minute vessels which originate in the substance of the tissues. [1913 Webster]

Syn: Primitive; original; natural; underived; fundamental; entire.

Usage: {Radical}, {Entire}. These words are frequently employed as interchangeable in describing some marked alteration in the condition of things. There is, however, an obvious difference between them. A radical cure, reform, etc., is one which goes to the root of the thing in question; and it is entire, in the sense that, by affecting the root, it affects in an appropriate degree the entire body nourished by the root; but it may not be entire in the sense of making a change complete in its nature, as well as in its extent. Hence, we speak of a radical change; a radical improvement; radical differences of opinion; while an entire change, an entire improvement, an entire difference of opinion, might indicate more than was actually intended. A certain change may be both radical and entire, in every sense. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • 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

  • Radical axis of two circles — 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 pitch — 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 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… …   The Collaborative International Dictionary of English

  • 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 vessels — 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

  • Stress oxydatif — Stress oxydant Les espèces réactives oxygénées (abréviation anglaise : ROS) et leur système de détoxification (version simplifiée). SOD : superoxyde dismutase, GSH peroxydase : glutathion peroxydase. Si ce système est submergé, il… …   Wikipédia en Français

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  • Radical (Chimie) — Pour les articles homonymes, voir Radical. Un radical (souvent appelé radical libre) est une entité chimique possédant un ou plusieurs électrons non appariés sur sa couche externe. Il se note par un point. La présence d un électron célibataire… …   Wikipédia en Français

  • Radical Libre — Radical (chimie) Pour les articles homonymes, voir Radical. Un radical (souvent appelé radical libre) est une entité chimique possédant un ou plusieurs électrons non appariés sur sa couche externe. Il se note par un point. La présence d un… …   Wikipédia en Français

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