激进分子( radical的名词复数 )；根基；基本原理；[数学]根数
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 opinionsa character conveying the lexical meaning of a logograma 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
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
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