英语词汇“radical”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

rad•i•cal adj.

thoroughgoing, complete, or extreme:a radical change in policy.
Governmentfavoring drastic or extreme political, economic, or social reforms:radical politics.
basic;
fundamental:[usually: before a noun]radical defects of character.
Slang Termsgreat;
marvelous;
wonderful:a radical dude.

n. [countable]

a person who holds or follows extreme convictions, beliefs, or principles;
extremist.
Mathematics
- a quantity expressed as a root of another quantity.
- radical sign.
Chemistrya group of atoms that act together as a unit.
Linguistics(in Chinese writing) one of 214 elements that have meaning or sense, and are used with elements representing sounds to form thousands of different characters.

rad•i•cal•ism, n. [uncountable]
rad•i•cal•ly, adv.

rad•i•cal adj.

of or going to the root or origin;
fundamental:a radical difference.
thoroughgoing or extreme, esp. as regards change from accepted or traditional forms:a radical change in the policy of a company.
Governmentfavoring drastic political, economic, or social reforms:radical ideas; radical and anarchistic ideologues.
forming a basis or foundation.
existing inherently in a thing or person:radical defects of character.
Mathematics
- pertaining to or forming a root.
- denoting or pertaining to the radical sign.
- irrational (def. 5b).
Grammarof or pertaining to a root.
Botanyof or arising from the root or the base of the stem.

a person who holds or follows strong convictions or extreme principles;
extremist.
Governmenta person who advocates fundamental political, economic, and social reforms by direct and often uncompromising methods.
Mathematics
- a quantity expressed as a root of another quantity.
- the set of elements of a ring, some power of which is contained in a given ideal.
- See radical sign.
Chemistry
- group (def. 3).
- See free radical.
Grammarroot (def. 11).
Linguistics(in Chinese writing) one of 214 ideographic elements used in combination with phonetics to form thousands of different characters.

Late Latin rādīcālis having roots, equivalent. to Latin rādīc- (stem of rādīx) root¹ + -ālis -al¹
Middle English 1350–1400

rad′i•cal•ness, n.

1.See corresponding entry in Unabridged basic, essential; original, innate, ingrained.
2.See corresponding entry in Unabridged complete, unqualified, thorough; drastic, excessive, immoderate, violent. Radical, extreme, fanatical denote that which goes beyond moderation or even to excess in opinion, belief, action, etc. Radical emphasizes the idea of going to the root of a matter, and this often seems immoderate in its thoroughness or completeness:radical ideas; radical changes or reforms.Extreme applies to excessively biased ideas, intemperate conduct, or repressive legislation:to use extreme measures.Fanatical is applied to a person who has extravagant views, esp. in matters of religion or morality, which render that person incapable of sound judgments; and excessive zeal which leads him or her to take violent action against those who have differing views:fanatical in persecuting others.

1, 2.See corresponding entry in Unabridged superficial.

radical /ˈrædɪk^əl/ adj

of, relating to, or characteristic of the basic or inherent constitution of a person or thing; fundamental: a radical fault
concerned with or tending to concentrate on fundamental aspects of a matter; searching or thoroughgoing: radical thought, a radical re-examination
favouring or tending to produce extreme or fundamental changes in political, economic, or social conditions, institutions, habits of mind, etc: a radical party
(of treatment) aimed at removing the source of a disease: radical surgery
slang chiefly US very good; excellent
of, relating to, or arising from the root or the base of the stem of a plant: radical leaves
of, relating to, or containing roots of numbers or quantities
of or relating to the root of a word

a person who favours extreme or fundamental change in existing institutions or in political, social, or economic conditions
a root of a number or quantity, such as ³√5, √x
Also: radicle
short for free radical
another name for group
another word for root¹

Etymology: 14th Century: from Late Latin rādīcālis having roots, from Latin rādix a root

ˈradicalness n

单词	radical
释义	WordReference Random House Learner's Dictionary of American English © 2024 rad•i•cal /ˈrædɪkəl/USA pronunciation adj. thoroughgoing, complete, or extreme:a radical change in policy. Governmentfavoring drastic or extreme political, economic, or social reforms:radical politics. basic; fundamental:[usually: before a noun]radical defects of character. Slang Termsgreat; marvelous; wonderful:a radical dude. n. [countable] a person who holds or follows extreme convictions, beliefs, or principles; extremist. Mathematics a quantity expressed as a root of another quantity. radical sign. Chemistrya group of atoms that act together as a unit. Linguistics(in Chinese writing) one of 214 elements that have meaning or sense, and are used with elements representing sounds to form thousands of different characters. rad•i•cal•ism, n. [uncountable] rad•i•cal•ly, adv. WordReference Random House Unabridged Dictionary of American English © 2024 rad•i•cal (rad′i kəl),USA pronunciation adj. of or going to the root or origin; fundamental:a radical difference. thoroughgoing or extreme, esp. as regards change from accepted or traditional forms:a radical change in the policy of a company. Governmentfavoring drastic political, economic, or social reforms:radical ideas; radical and anarchistic ideologues. forming a basis or foundation. existing inherently in a thing or person:radical defects of character. Mathematics pertaining to or forming a root. denoting or pertaining to the radical sign. irrational (def. 5b). Grammarof or pertaining to a root. Botanyof or arising from the root or the base of the stem. n. a person who holds or follows strong convictions or extreme principles; extremist. Governmenta person who advocates fundamental political, economic, and social reforms by direct and often uncompromising methods. Mathematics a quantity expressed as a root of another quantity. the set of elements of a ring, some power of which is contained in a given ideal. See radical sign. Chemistry group (def. 3). See free radical. Grammarroot (def. 11). Linguistics(in Chinese writing) one of 214 ideographic elements used in combination with phonetics to form thousands of different characters. Late Latin rādīcālis having roots, equivalent. to Latin rādīc- (stem of rādīx) root¹ + -ālis -al¹ Middle English 1350–1400 rad′i•cal•ness, n. 1.See corresponding entry in Unabridged basic, essential; original, innate, ingrained. 2.See corresponding entry in Unabridged complete, unqualified, thorough; drastic, excessive, immoderate, violent. Radical, extreme, fanatical denote that which goes beyond moderation or even to excess in opinion, belief, action, etc. Radical emphasizes the idea of going to the root of a matter, and this often seems immoderate in its thoroughness or completeness:radical ideas; radical changes or reforms.Extreme applies to excessively biased ideas, intemperate conduct, or repressive legislation:to use extreme measures.Fanatical is applied to a person who has extravagant views, esp. in matters of religion or morality, which render that person incapable of sound judgments; and excessive zeal which leads him or her to take violent action against those who have differing views:fanatical in persecuting others. 1, 2.See corresponding entry in Unabridged superficial. Collins Concise English Dictionary © HarperCollins Publishers:: radical /ˈrædɪk^əl/ adj of, relating to, or characteristic of the basic or inherent constitution of a person or thing; fundamental: a radical fault concerned with or tending to concentrate on fundamental aspects of a matter; searching or thoroughgoing: radical thought, a radical re-examination favouring or tending to produce extreme or fundamental changes in political, economic, or social conditions, institutions, habits of mind, etc: a radical party (of treatment) aimed at removing the source of a disease: radical surgery slang chiefly US very good; excellent of, relating to, or arising from the root or the base of the stem of a plant: radical leaves of, relating to, or containing roots of numbers or quantities of or relating to the root of a word n a person who favours extreme or fundamental change in existing institutions or in political, social, or economic conditions a root of a number or quantity, such as ³√5, √x Also: radicle short for free radical another name for group another word for root¹ Etymology: 14th Century: from Late Latin rādīcālis having roots, from Latin rādix a root ˈradicalness n
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