radical

名词 n. 形容词 adj.
中文释义
英 /ˈɹadɪkəl/   

英文释义

名词 n.
  1. A root (of a number or quantity).
  2. In logographic writing systems such as the Chinese writing system, the portion of a character used to index it. Often, but not always, this is also the portion indicating meaning; compare the following sense.; In logographic writing systems such as the Chinese writing system, the portion of a character (if any) that provides an indication of its meaning, as opposed to being wholly phonetic.
  3. In logographic writing systems such as the Chinese writing system, the portion of a character used to index it. Often, but not always, this is also the portion indicating meaning; compare the following sense.; Any component of a logographic character, whether used for indexing or not, whether semantic or not. common,proscribed
    — The boy recognised the Chinese characters, though the calligraphy looked a bit strange, as if drawn by someone who had seen them and copied them out radical by radical without knowing what they meant.
  4. In Celtic languages, the basic, underlying form of an initial consonant which can be further mutated under the Celtic initial consonant mutations.
  5. In Semitic languages, any one of the set of consonants (typically three) that make up a root.
  6. A group of atoms, joined by covalent bonds, that take part in reactions as a single unit.
  7. A free radical.
  8. Given an ideal I in a commutative ring R, another ideal, denoted Rad(I) or √, such that an element x ∈ R is in Rad(I) if, for some positive integer n, xⁿ ∈ I; equivalently, the intersection of all prime ideals containing I.
  9. Given a ring R, an ideal containing elements of R that share a property considered, in some sense, "not good".
  10. The intersection of maximal submodules of a given module.
  11. The product of the distinct prime factors of a given positive integer.
  12. A member of the most progressive wing of the Liberal Party; someone favouring social reform (but generally stopping short of socialism). historical
  13. A member of an influential, centrist political party favouring moderate social reform, a republican constitution, and secular politics. historical
  14. A person with radical opinions.
形容词 adj.
  1. Of or pertaining to the root of a plant. not-comparable
  2. Of or pertaining to the root of a word. not-comparable
  3. Produced using the root of the tongue. not-comparable
  4. Relating to a radix or mathematical root.
    — a radical quantity; a radical sign
  5. Pertaining to the basic or intrinsic nature of something.
    — The most determined exertions of that authority, against them, only showed their radical independence.
  6. Favoring fundamental change, or change at the root cause of a matter.
    — His beliefs are radical.
  7. Thoroughgoing; far-reaching.
    — The spread of the cancer required radical surgery, and the entire organ was removed.
  8. Involving free radicals. not-comparable
  9. Excellent; awesome. slang
    — That was a radical jump!

词形变化

more radical comparative most radical superlative radicals plural

词汇关系

近义词
Jacobin Jacobinic Jacobinical
反义词
derivative derived
衍生词
antiradical biradical counterradical nonradical tetraradical ultraradical deradical dudical equiradical extraradical hyperradical intraradical multiradical postradical radical anion radical axis radical cation radical center radical centrism radical centrist radical chic radical empiricism radical empiricist radical feminism radical feminist radical hysterectomy radical ion radicalise radicalish radical Islam radicalism radicalistic radicality radicalization radicalize radical line radically radical mastectomy radicalness radical plane radical pluralism radical prostatectomy radical reform radical right radical vinegar radicool semiradical unradical aminoxyl radical aminyl radical Artinian radical Baer radical Bring radical Brown–McCoy radical coradical diradical free radical heteroradical Jacobson radical Kangxi radical Köthe radical Levitzki radical lower radical lower radical operator macroradical metalloradical oxyradical polyradical preradical pseudoradical radical class radical ideal radical sign singular radical strong radical triradical upper nil radical
相关词
radix root nilradical

词源

词源 1
PIE word
*wréh₂ds
Inherited from Middle English radical, from Latin rādīcālis (“of or pertaining to the root, having roots, radical”). Compare grassroots.
词源 2
PIE word
*wréh₂ds
Inherited from Middle English radical, from Latin rādīcālis (“of or pertaining to the root, having roots, radical”). Compare grassroots.
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