radical是什么意思_radical怎么读_中英文释义(含例句用法)

an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that 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"

a person who has radical ideas or opinions

(mathematics) a quantity expressed as the root of another quantity

a character conveying the lexical meaning of a logogram

(linguistics) the form of a word after all affixes are removed;"thematic vowels are part of the stem"

Adjective:

(used of opinions and actions) far beyond the norm;"extremist political views"
"radical opinions on education"
"an ultra conservative"

markedly new or introducing radical change;"a revolutionary discovery"
"radical political views"

arising from or going to the root or source;"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;"basal placentation"
"radical leaves"

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中英词源

radical 根本的，激进的

rad-,根，-ical,形容词后缀。即根上的，引申词义根本的，激进的。

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.

词态变化

复数 radicals;
副词 radically;

权威造句

1. There will be a radical swing to the right or the left.: 这样将出现极左或极右的情况。

2. Radical feminism is currently the fashionable topic among the chattering classes.: 激进的女权主义是时下名嘴阶层热议的话题。

3. This thesis led to a radical reshaping of Labour policies.: 这篇论文导致了工党政策的彻底改变。

4. He remained for some years avowedly radical in his political outlook.: 他多年来保持公然激进的政治观。

5. The Conservative government will not slacken the pace of radical reform.: 保守党政府不会放慢激进改革的步伐。

近反义词

basic

fundamental

extreme

immoderate

相似短语

color radical 发色团

borine radical 硼氢基

compound radical 复根

heterocyclic radical 杂环基

radical chic 激进分子的时尚

azo radical phr. 偶氮化合物

radical chemistry 自由基化学

radical transfer 自由基转移

stearate radical 硬脂酸根

sulfanilyl radical 磺胺酰基

单词分析

这些形容词均有“基本的，基础的”之意。
basic普通用词，指明确、具体的基础或起点。
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。
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。
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。

记忆方法

暂无,等待补充.

radical是什么意思，radical怎么读

radical基本信息

英英释义