REDUCEの定義と意味 | Dictionary.com

REDUCE Definition & Meaning | Dictionary.com Synonyms reduce American [ri- doos , - dyoos ] / rɪˈdus, -ˈdyus / verb (used with object) reduced, reducing to bring down to a smaller extent, size, amount, number, etc.. to reduce one's weight by 10 pounds. Synonyms: abate , attenuate , lessen , retrench , contract , curtail , abridge , shorten , decrease , diminish Antonyms: increase to lower in degree, intensity, etc.. to reduce the speed of a car. Synonyms: abate , attenuate , lessen to bring down to a lower rank, dignity, etc.. a sergeant reduced to a corporal Synonyms: humble , demote , degrade Antonyms: exalt , elevate to treat analytically, as a complex idea. to lower in price. to bring to a certain state, condition, arrangement, etc.. to reduce glass to powder. to bring under control or authority. Synonyms: overpower , overcome , vanquish , subject , conquer , subjugate , subdue Cooking. to evaporate water from (a sauce, soup, or other liquid), usually by boiling. Photography. to lessen the density of (an exposed negative). to adjust or correct by making allowances, as an astronomical observation. Mathematics. to change the denomination or form, but not the value, of (a fraction, polynomial, etc.). Chemistry. to add electrons to. to deoxidize. to add hydrogen to. to change (a compound) so that the valence of the positive element is lower. Chemistry, Metallurgy. to bring into the metallic state by separating from nonmetallic constituents. to thin or dilute. to reduce paint with oil or turpentine. to lower the alcoholic concentration of (spirits) by diluting with water. Surgery. to restore to the normal place, relation, or condition, as a fractured bone. Phonetics. to modify the quality of (a speech sound) to one of lesser distinctiveness, especially to pronounce (an unstressed vowel) as (ə) or another centralized vowel, as in the unstressed syllables of medicinal. verb (used without object) reduced, reducing to become reduced. to become lessened, especially in weight. to be turned into or made to equal something. All our difficulties reduce to financial problems. Cell Biology. to undergo meiosis. reduce British / rɪˈdjuːs / verb (also intr) to make or become smaller in size, number, extent, degree, intensity, etc to bring into a certain state, condition, etc to reduce a forest to ashes to reduce someone to despair (also intr) to make or become slimmer; lose or cause to lose excess weight to impoverish (esp in the phrase in reduced circumstances ) to bring into a state of submission to one's authority; subjugate the whole country was reduced after three months to bring down the price of (a commodity) the shirt was reduced in the sale to lower the rank or status of; demote he was reduced from corporal to private reduced to the ranks to set out systematically as an aid to understanding; simplify his theories have been reduced in a popular treatise maths to modify or simplify the form of (an expression or equation), esp by substitution of one term by another cookery to make (a sauce, stock, etc) more concentrated by boiling away some of the water in it to thin out (paint) by adding oil, turpentine, etc; dilute (also intr) chem to undergo or cause to undergo a chemical reaction with hydrogen or formation of a hydride to lose or cause to lose oxygen atoms to undergo or cause to undergo an increase in the number of electrons Compare oxidize photog to lessen the density of (a negative or print) by converting some of the blackened silver in the emulsion to soluble silver compounds by an oxidation process using a photographic reducer surgery to manipulate or reposition (a broken or displaced bone, organ, or part) back to its normal site (also intr) biology to undergo or cause to undergo meiosis "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Other Word Forms antireducing adjective nonreducing adjective overreduce verb reducibility noun reducible adjective reducibly adverb Etymology Origin of reduce First recorded in 1325–75; Middle English reducen “to lead back,” from Latin redūcere “to lead back, bring back,” equivalent to re- re- + dūcere “to lead” Explanation You reduce something when you lessen its volume, size, or degree. That's why we say when someone goes on a diet, it's because they want to reduce ; it's a polite way of suggesting they need to drop pounds and become a smaller size. The word reduce first appeared in Old French during the 14th Century, when it meant "bring back." From the Latin re , which meant "back," coupled with ducere , meaning "bring or lead" — we ended up with reduce . The current meaning, "to lessen," appeared in the late 1700's, drawn from the word's military use, "reduce to ranks," which meant break into smaller units. Cooks use the word reduce when they reduce a liquid, boiling it down until it has less volume and is thicker. Keep Reading on Vocabulary.com Vocabulary lists containing reduce Jim Burke's Academic Vocabulary List Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide! Lead the Way: Duc and Duct Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use! Words to Know Before You Defrost the Bird Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time! Example Sentences Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com. At a time when the broader market is expensive and subject to headline risk, healthcare offers buyers a high-quality defensive option, one that could regain interest from investors seeking to reduce geopolitical risk. From Barron's • May 6, 2026 The Competition Bureau said the planned $3.7 billion transaction would reduce competition at a crucial natural-gas liquids-processing hub in Fort Saskatchewan, Alberta. From The Wall Street Journal • May 5, 2026 You will struggle to find a politician who does not want to reduce NHS waiting times and to end the morning rush for GP appointments. From BBC • May 5, 2026 There is no easy solution, and many are worried that U.S. borrowing costs could continue to climb in the years ahead if nothing is done to reduce the U.S.’s perennial budget deficits. From MarketWatch • May 5, 2026 “Good old Buster,” he said, trying to reduce her rigid postural stance. From "Do Androids Dream of Electric Sheep?" by Philip K. Dick Related Words curtail cut cut down diminish dwindle knock off lessen lower pare scale down shorten slash trim weaken Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023 Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.