| 单词 | base |
| 释义 | base (once / 58 pages) 1nadj 2nv 3n 4n 5n 6n 7v 8adj The base of something is usually the foundation, starting point, or main ingredient of something. A soup base is the flavoring or broth you use to get your soup started. If you're a soldier, you might live on a base ("place where you're stationed"). When your unit plays softball, you must touch each base before scoring. The bottom of pentagon-shaped home plate is its base ("bottom"). Yelling at or pushing the empire is considered base ("mean-spirited") behavior. At end of the season, your team might get a trophy, which sits on a base ("pedestal"), or a plaque made of brass, an alloy of zinc, which is base metal (it corrodes easily). WORD FAMILYbase: basal, based, baseless, basely, baseness, baser, bases, basest, basify, basilar, basing+/basal: basally/baseless: baselessly/baseness: basenesses USAGE EXAMPLESIn 1970, Brewer sought a full term as governor based on the belief that George Wallace would not run. Washington Times(Jan 02, 2017) Doctors and hospitals here are obsessed with metrics, not least because under the health law, they may be rewarded or penalized based on their performance. New York Times(Jan 02, 2017) Its study, by general secretary Andrew Harrop, was based on recent election results and polling. BBC(Jan 02, 2017) 1 1n lowest support of a structure it was built on a base of solid rock Syn|Hypo|Hyper foot, foundation, fundament, groundwork, substructure, understructure bed a foundation of earth or rock supporting a road or railroad track raft foundationa foundation (usually on soft ground) consisting of an extended layer of reinforced concrete railroad beda bed on which railroad track is laid roadbeda bed supporting a road support supporting structure that holds up or provides a foundation 2n a support or foundation the base of the lamp Syn|Hypo|Hyper pedestal, stand brass monkey a metal stand that formerly held cannon balls on sailing ships staddlea base or platform on which hay or corn is stacked triveta stand with short feet used under a hot dish on a table triveta three-legged metal stand for supporting a cooking vessel in a hearth support any device that bears the weight of another thing 3n a flat bottom on which something is intended to sit a tub should sit on its own base Hyper bottom, underside, undersurface the lower side of anything 4n the bottom or lowest part the base of the mountain Hyper part, piece a portion of a natural object 5n the bottom side of a geometric figure from which the altitude can be constructed the base of the triangle Hyper flank a subfigure consisting of a side of something 6n (anatomy) the part of an organ nearest its point of attachment the base of the skull Hyper bottom the lowest part of anything 7n a lower limit Syn|Hypo|Hyper floor price floor floor below which prices are not allowed to fall wage floorfloor below which wages are not allowed to fall control the economic policy of controlling or limiting or curbing prices or wages etc. 8adj serving as or forming a base 2the painter applied a base coat followed by two finishing coats Syn basal basic pertaining to or constituting a base or basis 1n the most important or necessary part of something Syn|Hyper basis component, component part, constituent, moiety, part, portion something determined in relation to something that includes it 2n the fundamental assumptions from which something is begun or developed or calculated or explained Syn|Hypo|Hyper basis, cornerstone, foundation, fundament, groundwork meat and potatoes the fundamental part assumption, supposal, supposition a hypothesis that is taken for granted 3n the place where you are stationed and from which missions start and end Syn|Hyper home location a point or extent in space 4n installation from which a military force initiates operations the attack wiped out our forward bases Syn|Hypo|Hyper base of operations air base, air station a base for military aircraft army basea large base of operations for an army firebasean artillery base to support advancing troops navy basebase of operations for a naval fleet rocket basea military base for rocket missiles military installation any facility servicing military forces 5n the stock of basic facilities and capital equipment needed for the functioning of a country or area the industrial base of Japan Syn|Hyper infrastructure fund, stock, store a supply of something available for future use 6n (linguistics) the form of a word after all affixes are removed Syn|Hyper radical, root, root word, stem, theme descriptor, form, signifier, word form the phonological or orthographic sound or appearance of a word that can be used to describe or identify something 7n the principal ingredient of a mixture glycerinated gelatin is used as a base for many ointments he told the painter that he wanted a yellow base with just a hint of green everything she cooked seemed to have rice as the base Hyper ingredient a component of a mixture or compound 8v use as a basis for; found on base a claim on some observation Syn|Hypo establish, found, ground build found or ground 9v situate as a center of operations 3we will base this project in the new lab Hyper locate, situate determine or indicate the place, site, or limits of, as if by an instrument or by a survey 1n a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA) Syn|Hypo|Hyper nucleotide base pair one of the pairs of chemical bases joined by hydrogen bonds that connect the complementary strands of a DNA molecule or of an RNA molecule that has two strands; the base pairs are adenine with thymine and guanine with cytosine in DNA and adenine with uracil and guanine with cytosine in RNA AMP, adenosine monophosphate, adenylic acida nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP ADP, adenosine diphosphatean ester of adenosine that is converted to ATP for energy storage ATP, adenosine triphosphatea nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions A, deoxyadenosine monophosphateone of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) C, deoxycytidine monophosphateone of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) G, deoxyguanosine monophosphateone of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) T, deoxythymidine monophosphateone of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) mutonthe smallest unit of DNA where a mutation can occur U, uracila base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine ester formed by reaction between an acid and an alcohol with elimination of water 2n any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water 4bases include oxides and hydroxides of metals and ammonia Syn|Hypo|Hyper alkali pyridine a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal purinea colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances purineany of several bases that are derivatives of purine glyoxaline, imidazole, iminazolean organic base C3H4N2; a histamine inhibitor cyanuramide, melaminea white crystalline organic base; used mainly in making melamine resins pyrimidineany of several basic compounds derived from pyrimidine A, adenine(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA C, cytosinea base found in DNA and RNA and derived from pyrimidine; pairs with guanine G, guaninea purine base found in DNA and RNA; pairs with cytosine T, thyminea base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine triphosphopyridinea pyridine ring with three phosphorus groups chemical compound, compound (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight n (numeration system) the positive integer that is equivalent to one in the next higher counting place 5Syn|Hyper radix number a concept of quantity involving zero and units n a place that the runner must touch before scoring 6Syn|Hypo|Hyper bag first base the base that must be touched first by a base runner in baseball home, home base, home plate, plate(baseball) base consisting of a rubber slab where the batter stands; it must be touched by a base runner in order to score second basethe base that must be touched second by a base runner in baseball third, third basethe base that must be touched third by a base runner in baseball baseball equipment equipment used in playing baseball n (electronics) the part of a transistor that separates the emitter from the collector 7Hyper electrode a conductor used to make electrical contact with some part of a circuit v use (purified cocaine) by burning it and inhaling the fumes 8Syn|Hyper free-base do drugs, drug use recreational drugs 1adj of low birth or station (`base' is archaic in this sense) Syn baseborn, humble, lowly lowborn of humble birth or origins 2adj debased; not genuine an attempt to eliminate the base coinage Syn counterfeit, imitative not genuine; imitating something superior 3adj illegitimate Syn baseborn illegitimate of marriages and offspring; not recognized as lawful 4adj not adhering to ethical or moral principles base and unpatriotic motives a base, degrading way of life Syn immoral wrong contrary to conscience or morality or law 5adj having or showing an ignoble lack of honor or morality "that liberal obedience without which your army would be a base rabble"- Edmund Burke Syn mean, meanspirited ignoble completely lacking nobility in character or quality or purpose 6adj (used of metals) consisting of or alloyed with inferior metal base coins of aluminum a base metal Syn inferior of low or inferior quality Base (once / 2507 pages) n WORD FAMILY Base: Bases USAGE EXAMPLESThe Iridium satellite is to be launched by SpaceX from a leased launchpad at Vandenberg Air Force Base in California. New York Times(Jan 02, 2017) Saturday in the parking lot of the business about a mile north of Davis-Monthan Air Force Base. Washington Times(Dec 31, 2016) On Nov. 1, the company’s First and Third Platoons arrived at Patrol Base Lakari, a crude outpost built weeks before. New York Times(Dec 28, 2016) n a terrorist network intensely opposed to the United States that dispenses money and logistical support and training to a wide variety of radical Islamic terrorist groups; has cells in more than 50 countries Syn|Exp Qaeda, al-Qa'ida, al-Qaeda, al-Qaida FTO, foreign terrorist organization, terrorist group, terrorist organization a political movement that uses terror as a weapon to achieve its goals |
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