[{"word":"radical","phonetic":"/ˈɹædɪkəl/","phonetics":[{"text":"/ˈɹædɪkəl/","audio":"https://api.dictionaryapi.dev/media/pronunciations/en/radical-au.mp3","sourceUrl":"https://commons.wikimedia.org/w/index.php?curid=79241531","license":{"name":"BY-SA 4.0","url":"https://creativecommons.org/licenses/by-sa/4.0"}}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"(historical: 19th-century Britain) A member of the most progressive wing of the Liberal Party; someone favouring social reform (but generally stopping short of socialism).","synonyms":[],"antonyms":[]},{"definition":"(historical: early 20th-century France) A member of an influential, centrist political party favouring moderate social reform, a republican constitution, and secular politics.","synonyms":[],"antonyms":[]},{"definition":"A person with radical opinions.","synonyms":[],"antonyms":[]},{"definition":"A root (of a number or quantity).","synonyms":[],"antonyms":[]},{"definition":"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 phonetic.","synonyms":[],"antonyms":[]},{"definition":"In Semitic languages, any one of the set of consonants (typically three) that make up a root.","synonyms":[],"antonyms":[]},{"definition":"A group of atoms, joined by covalent bonds, that take part in reactions as a single unit.","synonyms":[],"antonyms":[]},{"definition":"A free radical.","synonyms":[],"antonyms":[]},{"definition":"(commutative algebra, of an ideal) Given an ideal I in a commutative ring R, another ideal, denoted Rad(I) or \\sqrt{I}, 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.","synonyms":[],"antonyms":[]},{"definition":"(of a ring) Given a ring R, an ideal containing elements of R that share a property considered, in some sense, \"not good\".","synonyms":[],"antonyms":[]},{"definition":"(of a module) The intersection of maximal submodules of a given module.","synonyms":[],"antonyms":[]},{"definition":"The product of the distinct prime factors of a given positive integer.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]},{"partOfSpeech":"adjective","definitions":[{"definition":"Favoring fundamental change, or change at the root cause of a matter.","synonyms":[],"antonyms":[],"example":"His beliefs are radical."},{"definition":"Pertaining to a root (of a plant).","synonyms":[],"antonyms":[]},{"definition":"Pertaining to the basic or intrinsic nature of something.","synonyms":["fundamental"],"antonyms":["ignorable","trivial"]},{"definition":"Thoroughgoing; far-reaching.","synonyms":[],"antonyms":[],"example":"The spread of the cancer required radical surgery, and the entire organ was removed."},{"definition":"Of or pertaining to the root of a word.","synonyms":[],"antonyms":[]},{"definition":"(of a sound) Produced using the root of the tongue.","synonyms":[],"antonyms":[]},{"definition":"Involving free radicals.","synonyms":[],"antonyms":[]},{"definition":"Relating to a radix or mathematical root.","synonyms":[],"antonyms":[],"example":"a radical quantity; a radical sign"},{"definition":"(1980s & 1990s) Excellent; awesome.","synonyms":[],"antonyms":[],"example":"That was a radical jump!"}],"synonyms":["primitive","fundamental"],"antonyms":["derivative","derived","ignorable","trivial"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/radical"]}]