radical

adj. 激进的；根本的；彻底的

n. 基础；激进分子；[物化] 原子团；[数] 根数

adj.

根本的，基本的；激进的；彻底的；[植]根生的

n.

激进分子；根基，原子团；[数学]根数；

变形

复数：radicals

双语释义

根本的,基本的; 彻底的,完全的 having wide and important effects; thorough and complete

激进的,激进派的 in favor of thorough and complete political change

英英释义

radical[ 'rædikəl ]

n.

(chemistry) two or more atoms bound together as a single unit and forming part of a molecule

同义词：groupchemical group

an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule than has lost an electron and will stabilize itself by stealing an electron from a nearby molecule

"in the body free radicals are high-energy particles that ricochet wildly and damage cells"

同义词：free radical

a person who has radical ideas or opinions

a character conveying the lexical meaning of a logogram

a sign placed in front of an expression to denote that a root is to be extracted

同义词：radical sign

(linguistics) the form of a word after all affixes are removed

同义词：rootroot wordbasestemtheme

adj.

(used of opinions and actions) far beyond the norm

"radical opinions on education"

同义词：extremistultra

markedly new or introducing radical change

"radical political views"

同义词：revolutionary

arising from or going to the root

"a radical flaw in the plan"

of or relating to or constituting a linguistic root

"a radical verb form"

especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem

"radical leaves"

同义词：basal

词汇搭配

用作形容词 (adj.)

～+名词

radical measures激进的手段

radical policies激进的政策

词组短语

free radical[化]自由基；游离基

radical polymerization游离基聚合；游离基引发聚合反应

radical mastectomy n. 根治性乳房切除术

radical operation根治手术

free radical polymerization自由游离基（引发）聚合

sulfate radical硫酸根

radical prostatectomy根治性前列腺切除术

acid radical n. 酸基，酸根

radical scavenger游离基清除剂

free radical reaction自由基反应

同近义词辨析

这组词都有“基本的，基础的”的意思，其区别是：

vital正式用词，侧重指维持生命、活力必不可少的，或生死攸关的。

essential语气比basic和fundamental强，强调必不可少，暗含某物如缺少某部分，则失去本质特征的意味。

basic普通用词，指明确、具体的基础或起点。

fundamental书面用词，不如basic使用广泛，侧重指作为基础、根本的抽象的事物。

radical着重指事物的根本或其来源。

双语例句

用作形容词(adj.)

I know you are radical in your thinking, but don't go too far.
我知道你思想激进,但不要走的太远。

He took up a radical position on this issue.
他对这个问题抱着激进的态度。

They called for a radical reform of our tax system.
他们要求对税收制度进行根本改革。

Lambert did not reach the more radical conclusion.
兰伯特还没有达到更本质的结论。

用作名词(n.)

Ted is a fire-eating radical.
泰德是个咄咄逼人的激进份子。

权威例句

radical

radical: [14] Etymologically, radical means ‘of roots’. Its modern political meaning, based on the metaphor of fundamental change, going to the ‘roots’ of things, did not begin to emerge until the 18th century. The word was borrowed from late Latin rādīcālis, a derivative of Latin rādīx ‘root’ (source of English radish [OE] and probably related to root).=> radish, ramify, root

radical (adj.)

late 14c., in a medieval philosophical sense, from Late Latin radicalis "of or having roots," from Latin radix (genitive radicis) "root" (see radish). Meaning "going to the origin, essential" is from 1650s. Radical sign in mathematics is from 1680s. Political sense of "reformist" (via notion of "change from the roots") is first recorded 1802 (n.), 1817 (adj.), of the extreme section of the British Liberal party (radical reform had been a current phrase since 1786); meaning "unconventional" is from 1921. U.S. youth slang use is from 1983, from 1970s surfer slang meaning "at the limits of control." Radical chic is attested from 1970; popularized, if not coined, by Tom Wolfe. Radical empiricism coined 1897 by William James (see empiricism).

radical (n.)

1630s, "root part of a word, from radical (adj.) Political sense from 1802; chemical sense from 1816.

1. A radical critic of society has turned into a High-Church reactionary.

一个激进的社会批评家变成了高教会派的反动分子。

-- 来源 -- 英汉 - 辞典例句

2. There is a more radical solution that delivers us from modeless dialog maladies.

还有一种更激进的方法可以解决非模态对话框的弊病。

-- 来源 -- About Face 3交互设计精髓

3. A radical is an indicated root of an algebraic expression.

根式是一个代数表达式的一个确定的根。

-- 来源 -- 英汉 - 辞典例句

4. Radical theories examine history and trace a theory of stages of development.

激进理论考察历史，并探索一套发展阶段的理论。

-- 来源 -- 英汉 - 辞典例句

5. Love is the radical of lovely, loveliness, and loving.

Love是lovely,loveliness及loving的词根。

-- 来源 -- 英汉 - 辞典例句

6. a radical expression

无理式

-- 来源 -- 英汉 - 辞典例句

7. A free radical is a molecular fragment having an unpaired electron.

自由基是一种具有未配对电子的分子碎体。

-- 来源 -- 英汉 - 辞典例句

8. Lambert did not reach the more radical conclusion.

Lambert还没有达到更本质的结论。

-- 来源 -- 英汉 - 辞典例句

9. Two solutions for better modeless dialogs We offer two design strategies for improving modeless dialogs. The first one is easy to swallow, a stopgap for common predicaments. The second one is more radical; an evolutionary step forward.

我们提供两种改进非模态对话框的设计思路，第1种容易理解，是对现存困境的演化；第2种则更激进一些，是一种革命式的跳跃。

-- 来源 -- About Face 3交互设计精髓

10. At this high-level, “rectangle phase,” it’s very easy to explore a variety of ways of presenting information and functionality and to perform radical reorganizations, if necessary.

在这个高层次上，即方块图阶段，如果有必要的话，非常容易探索表达信息和功能的不同方式，也非常容易进行根本的重新组织安排。

-- 来源 -- About Face 3交互设计精髓