radical

radical
adjective

(especially of change or action) relating to or affecting the fundamental nature of something: far-reaching or thorough
（尤指变化或行动）根本的；意义深远的，彻底的
a radical overhaul of the existing regulatory framework.
对现有管理体制的彻底检查。
■forming an inherent or fundamental part of the nature of someone or something
原本的，固有的，与生俱来的
the assumption of radical differences between the mental attributes of literate and non-literate peoples.
就有文字民族与无文字民族之间智力特征固有差异的假设。
■(of surgery or medical treatment) thorough and intended to be completely curative
（外科，医疗）根治的，根除的
■characterized by departure from tradition: innovative or progressive
反传统的；创新的，革新的；进步的
the city is known for its radical approach to transport policy.
该市以交通政策方面的革新而著称。
advocating thorough or complete political or social reform: representing or supporting an extreme or progressive section of a political party
过激的；激进的，激进派的
a radical American activist.
美国激进主义分子。
■(of a measure or policy) following or based on such principles
（措施，政策）彻底革新的；激进性的
■(Brit. historical)belonging to an extreme section of the Liberal party during the 19th century
(英，史)（19世纪）自由党激进派的
of or relating to the root of something, in particular
（与）根（有关）的，尤指
■(Mathematics)of the root of a number or quantity
(数)根式的；根号的；根基的
■denoting or relating to the roots of a word
词根的
■(Music)belonging to the root of a chord
(乐)根音
■(Botany)of, or springing direct from, the root or stem base of a plant
(植)根生的
[usu. as exclamation](informal, chiefly US)very good: excellent
(非正式，主美)顶刮刮的
Okay, then. Seven o'clock. Radical!.
好吧。7点钟。太棒了！。

noun

a person who advocates thorough or complete political or social reform: a member of a political party or part of a party pursuing such aims
过激主义者；激进主义者
French
(Chemistry)a group of atoms behaving as a unit in a number of compounds
(化)基，根，原子团。参见free radical
the root or base form of a word
词根
■any of the basic set of approximately 214 Chinese characters constituting semantically or functionally significant elements in the composition of other characters and used as a means of classifying characters in dictionaries
（汉字）偏旁，部首
(Mathematics)a quantity forming or expressed as the root of another
(数)根式；根基
■a radical sign
根号

派生
radicalism
noun

（限名词义项 2）

radically
adverb

[as submodifier]a radically different approach.
截然不同的方法。

radicalness
noun
语源

late Middle English (in the senses forming the root and inherent): from late Latin radicalis, from Latin radix, radic- 'root'

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