英语单词词典

perpetuity美[ˌpɜːrpətuːəti]英[ˌpɜːpətjuːəti]n.永恒；永久；【经】永久年金；【法】永久所有权名词复数：perpetuities近义词：eternity，endlessness，alltime，permanence，infinity，imperishability，timelessness，sempite......

perpetuator美[pəpetʃʊeɪtə]英[pəpetʃʊeɪtə]n.永久保存的人......

perpetuation美[pəˌpetʃueɪʃn]英[pəˌpetʃueɪʃn]n.永存；不朽近义词：continuance，maintenance，stability，prolongation，continuation，preservation，endurance，spread，dissemination，propagation，extension，immortalization......

perpetuate美[pərpetʃueɪt]英[pəpetʃueɪt]vt.使永存；使不朽名词：perpetuance过去式：perpetuated过去分词：perpetuated现在分词：perpetuating第三人称单数：perpetuates近义词：continue，carryon，preserve，prolong，spread，diss......

perpetually美[pəpetʃuəli]英[pəpetʃuəli]adv.持久地；永恒地近义词：ever，forever，always，constantly，continually，continuously，everlastingly，eternally，permanently，enduringly，incessantly，英英释义Adverbeverlastingly;f......

perpetual美[pərpetʃuəl]英[pəpetʃuəl]adj.永久的；永恒的；一再往复的副词：perpetually近义词：continuous，eternal，permanent，lasting，constant，continual，endless，infinite，incessant，unending，everlasting，unceasing，ceaseless......

perpetrator美[pɜːrpətreɪtər]英[pɜːpətreɪtə(r)]n.犯人，犯罪嫌疑人；作恶之人近义词：worker，culprit，criminal，wrongdoer，offender，agent，perp，英英释义Nounsomeonewhoperpetrateswrongdoing例句Theperpetratorcouldh......

perpetration美[ˌpɜːpətreɪʃn]英[ˌpɜːpətreɪʃn]n.做坏事；犯罪近义词：commission，enactment，transaction，action，responsibility，performance，execution，committal，英英释义Nountheactofcommittingacrime例句用作名......

perpetrate美[pɜːrpətreɪt]英[pɜːpətreɪt]vt.做（坏事）；犯(罪)名词：perpetration过去式：perpetrated过去分词：perpetrated现在分词：perpetrating第三人称单数：perpetrates近义词：commit，effect，carryout，pulloff，do，berespon......

perpendicularly美[ˌpɜːpəndɪkjələlɪ]英[ˌpɜːpəndɪkjʊləlɪ]adv.垂直地；笔直地；纵向地近义词：sheer，英英释义Adverbstraightupordownwithoutabreakinaperpendicularmanner;"thisredlinerunsperpendicularl......

perpendicularity美[ˌpɜːpənˌdɪkjəlerətɪ]英[pɜːpənˌdɪkjʊlerətɪ]n.垂直；直立近义词：orthogonality，英英释义Nountherelationofoppositionbetweenthingsatrightanglesthequalityofbeingatrightanglesto......

perpendicular美[ˌpɜːrpəndɪkjələr]英[ˌpɜːpəndɪkjələ(r)]adj.垂直的；直立的；陡峭的n.垂直线副词：perpendicularly名词：perpendicularity近义词：vertical，upright，erect，boltupright，sheer，abrupt，steep，plumbline，p......

perpend美[pəpend]英[pəpend]v.细细考虑过去式：perpended过去分词：perpended现在分词：perpending第三人称单数：perpends......

peroxysulphate美[pərɒksɪsʌfeɪt]英[pərɒksɪsʌfeɪt]n.[化]过(二)硫酸盐......

peroxisome美[pərɒksɪˌsoʊm]英[pərɒksɪsəʊm]n.[生化]过氧物酶体形容词：peroxisomal例句TheAD7C-NTPproteinwaspredictedtohave3potentialtransmembranedomainsandlocateonperoxisomesmembrane.AD7CNTP基因编......

peroxide美[pərɑːksaɪd]英[pərɒksaɪd]n.过氧化物形容词：peroxidic过去式：peroxided过去分词：peroxided现在分词：peroxiding第三人称单数：peroxides近义词：hydrogenperoxide，bleach，tint，lighten，dye，fade，colour，discolor，ri......

peroxidation美[pəˌrɒksɪdeɪʃən]英[pəˌrɒksɪdeɪʃən]n.过氧化反应例句用作名词(n.)Peroxidationofalkylaromaticsisthekeysteptosynthesisofphenols.烷基芳烃过氧化反应是酚类合成反应的关键步骤。......

peroxidate美[pərɒksɪdeɪt]英[pərɒksɪdeɪt]v.[化](使)过氧化......

peroxidase美[pərɒksɪˌdeɪs]英[pərɒksɪdeɪs]n.[生化]过氧(化)物酶英英释义Nounanyofagroupofenzymes(occurringespeciallyinplantcells)thatcatalyzetheoxidationofacompoundbyaperoxide例句用作名词(n.)The......

peroxid美[pərɒksɪd]英[pərɒksɪd]n.[化]过氧化物；过氧化氢例句用作名词(n.)ByusingDEHA-NaNO_2complexinhibitersolution,theformationofbutadieneperoxidanditsself-polymercouldbepreventedeffectively.使用由......

perosis美[pɪroʊsɪs]英[pɪrəʊsɪs]n.[兽医](雏鸡的)锰缺乏症例句Arsenocholinepreventedperosisbutdidnotpromotegrowth.砷胆碱防止了胫骨短粗症，但不能促进生长。Perosi佩罗西......

perorator美[pɜːɒrətə]英[pɜːɒrətə]n.淘淘善辩的人......

peroration美[ˌperəreɪʃn]英[ˌperəreɪʃn]n.结语；结论近义词：speech，oration，discourse，address，talk，lecture，declamation，英英释义Nounafloweryandhighlyrhetoricaloration(rhetoric)theconcludingsectionofanoration......

perorate美[perəˌreɪt]英[perəˌreɪt]v.作结语；下结论；冗长地谈论形容词：perorational名词：peroration过去式：perorated过去分词：perorated现在分词：perorating第三人称单数：perorates英英释义Verbconcludeaspeechwithaf......

peroral美[pərɒrəl]英[pəʊɔːrəl]adj.经过口的；口周围的副词：perorally例句Thereisnosignificantdifferenceininhibitionbetweentransdermaltherapyandperoraltherapygroups.药物经皮吸收与口服在抗小鼠惊厥方面......

peronist美英adj.(阿根廷总统)庇隆的；庇隆主义的；庇隆主义者的近义词：Peronista，例句用作形容词(adj.)HemightcontinuetomanagerelationswiththePeronistbase.他可能还是会继续掌管并协调与庇隆主义分子的关系。Pollsshow......

peronismo美英n.=Peronism......

peronism美英n.庇隆主义(指以国家复兴和民族解放为主要内容；同时主张集权)......

peroneal美[ˌperəniːəl]英[ˌperəniːəl]adj.腓骨的；腓侧的英英释义Adjectiveoforrelatingtothefibulaortheouterpartofthelegbelowtheknee例句MadonnaactedasEvitaPeroninamusical.麦当娜在一部音乐剧里饰演了......

pernoctation美[pɜːnɒkteɪʃən]英[pɜːnɒkteɪʃən]n.彻夜不眠......

pernickety美[pərnɪkəti]英[pənɪkəti]adj.爱挑剔的；难以取悦的；要仔细做的近义词：fastidious，meticulous，exacting，demanding，finicky，fussy，picky，painstaking，nitpicking，pedantic，detailed，fiddly，precise，fine，complex，compli......

perniciously美[pənɪʃəslɪ]英[pənɪʃəslɪ]adv.有害地；有毒地近义词：insidiously，wickedly，evilly，spitefully，harmfully，destructively，ruinously，fatally，damagingly，banefully，英英释义Adverbinaharmfullyinsidiousman......

pernicious美[pərnɪʃəs]英[pənɪʃəs]adj.有害的；恶性的副词：perniciously名词：perniciousness近义词：malignant，destructive，deadly，harmful，damaging，fatal，detrimental，hurtful，mortal，injurious，black，accursed，disadvantag......

pern美[pɜːn]英[pɜːn]n.[鸟]蜂鹰例句pernjessie|allgalleries>>Travel>>vienna+CZ.>从教堂出来后刚好碰上某次阅兵?abidtobuyallofapernsholdings.购买某人所有财产的投标。Keywordsmagneticheadcorewafermateria......

permute美[pəmjuːt]英[pəmjuːt]v.改序；[数]排列形容词：permutable副词：permutably名词：permutability过去式：permuted过去分词：permuted现在分词：permuting第三人称单数：permutes近义词：commute，transpose，详细释义v.(动词)......

permutation美[ˌpɜːrmjuteɪʃn]英[ˌpɜːmjuteɪʃn]n.交换；排列形容词：permutational近义词：variation，transformation，change，version，arrangement，rearrangement，combination，alternative，vicissitude，mutation，transposit......

permutable美[pəmjuːtəbəl]英[pəmjuːtəbl]adj.能交换的；可排列的近义词：convertible，transposable，英英释义Adjectivecapableofchangingsequence例句IfHisconditionallypermutableineverysubgroupofGcontainingH,t......

permittivity美[ˌpɜːmɪtɪvətɪ]英[ˌpɜːmɪtɪvətɪ]n.[物理]电容率(介电常数)名词复数：permittivities例句用作名词(n.)Thetheoreticalcalculationshowsthatpotentialdistributioniseffectedbytime-harmonic......

permit美[pərmɪt]英[pəmɪt]n.许可证；执照v.允许；许可名词：permittee过去式：permitted过去分词：permitted现在分词：permitting第三人称单数：permits近义词：allow，approve，authorize，commission，endorse，leave，let，license，sanction......

permissivist美[pəmɪsəvɪst]英[pəmɪsɪvɪst]n.放纵主义者；极端自由主义者......

permissively美[pəmɪsɪvlɪ]英[pəmɪsɪvlɪ]adv.许可地；自由地近义词：tolerantly，liberally，accommodatingly，freely，laxly，indulgently，loosely，progressively，英英释义Adverbinapermissivemanner例句First,thecourtinter......

permissive美[pərmɪsɪv]英[pəmɪsɪv]adj.放任的；纵容的；许可的；获准的副词：permissively名词：permissiveness近义词：lenient，tolerant，liberal，accommodating，lax，laissez-faire，hands-off，broad-minded，free，loose，indulgent，pro......

permission美[pərmɪʃn]英[pəmɪʃn]n.许可；允许；同意近义词：leave，consent，approval，permit，license，yes，concession，passport，subscription，favor，sanction，authorization，go-ahead，agreement，acquiescence，Ok，greenlight，say-so，clea......

permissibly美[pəmɪsəblɪ]英[pəmɪsəblɪ]adv.得到许可地；获准地近义词：allowably，acceptably，legitimately，legally，lawfully，impermissibly，英英释义Adverbinapermissiblemanner例句Oncebecomethegoodfriendoftheuser......

permissible美[pərmɪsəbl]英[pəmɪsəbl]adj.可允许的；容许的副词：permissibly名词：permissibility近义词：allowable，tolerable，admissible，acceptable，accepted，approved，legitimate，legal，lawful，impermissible，详细释义adj.(......

permissibility美[pəˌmɪsəbɪlətɪ]英[pəˌmɪsəbɪlɪtɪ]n.允许；容许性近义词：impermissibility，英英释义Nounadmissibilityasaconsequenceofbeingpermitted例句Afilterfirewallusetheaddressinginformationcon......

permillage美[pəmɪlɪdʒ]英[pəmɪlɪdʒ]n.千分率......

permian美英adj.二叠纪的；二叠系的n.二叠纪近义词：Permianperiod，详细释义adj.(形容词)【地】二叠纪的二叠系的二叠的n.(名词)二叠纪英英释义Nounfrom280millionto230millionyearsago;reptiles例句用作形容词(adj.)Permi......

permeation美[ˌpɜːmieɪʃn]英[ˌpɜːmieɪʃn]n.渗透；弥漫；充盈近义词：pervasion，infusion，flood，saturation，infiltration，invasion，spread，penetration，filtration，leakage，diffusion，seepage，entrance，impregnation，percolatio......

permeate美[pɜːrmieɪt]英[pɜːmieɪt]v.弥漫；渗透；普及形容词：permeant名词：permeation过去式：permeated过去分词：permeated现在分词：permeating第三人称单数：permeates近义词：pervade，saturate，soak，penetrate，filter，infuse，fl......

permease美[pəmiːˌeɪs]英[pɜːmɪeɪs]n.[生化]透(性)酶例句Themalatepermease,encodedbymlePgene,isimportantforassistingmalolacticfermentation(MLF).苹果酸通透酶具有协助苹果酸乳酸发酵(MLF)的重要功能。I......

permeant美[pɜːmɪənt]英[pɜːmɪənt]adj.浸透的；渗入的近义词：permeative，pervasive，permeating，英英释义Adjectivespreadingorspreadthroughout;"armedwithpermeativeirony...hepuncturesaffectations""thepervasiv......

permeance美[pɜːmɪəns]英[pɜːmɪəns]n.浸透例句Guaranteedbylowwaterpermeance.低透水率性能保证。Usersnowcancalculatethepermeanceofwatervapour.用户现在可以计算的渗入的水蒸汽。Calculatethewatervaport......

permeameter美[pɜːmɪæmɪtə]英[pɜːmɪæmɪtə]n.磁导计(渗透仪；渗透性试验仪)例句N.S.permeameterN.S.磁导计Basedonthelaborthogonaltests,usingself-manufacturedconstantheadpermeameter,theeffectofgravel......

permeably美[pɜːməblɪ]英[pɜːməblɪ]adv.可透渗的(可透过的；渗透性的)......

permeable美[pɜːrmiəbl]英[pɜːmiəbl]adj.可渗透的；可穿透的副词：permeably近义词：absorbent，holey，porous，leaky，penetrable，pervious，absorptive，spongy，impermeable，详细释义adj.(形容词)可渗透的可穿过的有渗透性的透水......

permeability美[ˌpɜːmiəbɪləti]英[ˌpɜːmiəbɪləti]n.弥漫；渗透；渗透度；[物]磁导率名词复数：permeabilities近义词：porousness，penetrability，perviousness，absorbency，absorptivity，sponginess，permeableness，impermea......

permanganic美[pɜːmængænɪk]英[pɜːmængænɪk]adj.[化]含最高价锰的......

permanganate美[pɜːmæŋgəˌneɪt]英[pɜːmæŋgəneɪt]n.〈化〉高锰酸盐详细释义n.(名词)【化】高锰酸盐过锰酸盐高锰酸英英释义Nounadarkpurplesaltofpermanganicacid;inwatersolutionitisusedasadisinfectan......

permanently美[pɜːmənəntli]英[pɜːmənəntli]adv.永久地近义词：forgood，enduringly，forever，always，lastingly，perpetually，eternally，everlastingly，constantly，temporarily，详细释义adv.(副词)永久地长期不变地持久地英......

permanent美[pɜːrmənənt]英[pɜːmənənt]adj.永久的；持久的n.烫发副词：permanently名词：permanentness近义词：eternal，everlasting，stable，unchanged，fleeting，temporary，详细释义adj.(形容词)永久（性）的，永恒的，持久的，永远的......

permanency美[pɜːmənənsi]英[pɜːmənənsi]n.永久；永久的事物近义词：permanence，英英释义Nounthepropertyofbeingabletoexistforanindefiniteduration例句用作名词(n.)Theresnopermanencyaboutthoselittledistinct......

permanence美[pɜːrmənəns]英[pɜːmənəns]n.永久；持久近义词：stability，existence，durability，perpetuity，durableness，solidity，longevity，immovability，lastingness，permanency，impermanence，详细释义n.(名词)（长期）不变耐久......

permafrost美[pɜːrməfrɔːst]英[pɜːməfrɒst]n.永久冻土层详细释义n.(名词)【地】永久冻土永冻层地球的永久冻结带多年冻土区永久冻土层英英释义Noungroundthatispermanentlyfrozen例句用作名词(n.)Meltingper......

perlocutionary美[ˌpɜːləkjuːʃənəri]英[ˌpɜːləkjuːʃənəri]adj.[语][哲]言语表达效果的例句Toactivatethinkingisthechiefperlocutionaryacteffectsearchedbyspeechactinclassroomquestions.激活思维......

perlocution美[ˌpɜːrləkjuːʃn]英[ˌpɜːləkjuːʃn]n.[语][哲]言语表达效果(指使人信服、激动等的说话效果)......

perlite美[pɜːlaɪt]英[pɜːlaɪt]n.珍珠岩sp.=pearlite.形容词：perlitic例句用作名词(n.)Onepopularplantingmixcombinesonepartpottingsoilwithonepartperlite.其中一部份结合流行的组合盆栽种植土一部分珍珠岩。......

perlis美英sp.玻璃市州[马来西亚马来亚地区州名]......

perle美[pɜːl]英[pɜːl]n.[药]珠状胶囊药剂例句Asmentionedabove,Perlisfairlyeasytolearn.如上所述，学会Perl相当容易。ThePerlinterpreterhasmanyoptions.Perl解释器有许多选项。ToseeyourcurrentPerlversion.查......

perky美[pɜːrki]英[pɜːki]adj.活泼的；得意洋洋的副词：perkily比较级：perkier最高级：perkiest名词：perkiness近义词：lively，cheerful，pert，energetic，sprightly，jaunty，bouncy，happy，animated，overconfident，self-confident，confide......

perk美[pɜːrk]英[pɜːk]v.（使）振作；打扮；竖起vi.滤煮n.额外津贴；特权；利益过去式：perked过去分词：perked现在分词：perking第三人称单数：perks近义词：perquisite，bonus，benefit，incentive，plus，extra，advantage，pluspoint，privilege，swe......

perjury美[pɜːrdʒəri]英[pɜːdʒəri]n.伪证罪；伪誓；背信弃义形容词：perjurious副词：perjuriously名词复数：perjuries近义词：lying，lie，falsehood，untruth，fabrication，falsification，mendacity，equivocation，prevarication，详......

perjurious美[pədʒɜːɪəs]英[pədʒʊərɪəs]adj.伪证的；犯伪证罪的......

perjurer美[pɜːdʒərə(r)]英[pɜːdʒərə(r)]n.伪誓者；伪证者近义词：liar，falsewitness，英英释义Nounapersonwhodeliberatelygivesfalsetestimony例句LookupontheInfamousPerjurer!看看这位声名狼藉的伪证犯！Aswaggi......

perjured美[pɜːdʒəd]英[pɜːdʒəd]adj.伪证的；犯伪证罪的英英释义动词perjureknowinglytellanuntruthinalegalcourtandrenderoneselfguiltyofperjury例句Sheadmittedthatshehadperjuredherself.她承认自己作了伪......

perjure美[pɜːrdʒər]英[pɜːdʒə(r)]vt.发伪誓；作伪证名词：perjurer过去式：perjured过去分词：perjured现在分词：perjuring第三人称单数：perjures近义词：lie，forswear，fabricate，equivocate，prevaricate，英英释义Verbknowing......

periwinkle美[periwɪŋkl]英[periwɪŋkl]n.长春花属的植物；滨螺；玉黍螺近义词：winkle，Vincarosea，Catharanthusroseus，oldmaid，详细释义n.(名词)【植】长春花【动】玉黍螺玉黍螺壳蔓长春花滨螺【贝类】荔枝螺海螺长春花属......

periwig美[perəˌwɪg]英[perɪwɪg]n.假发v.带假发近义词：peruke，wig，hairpiece，toupee，rug，英英释义Nounawigformenthatwasfashionableinthe17thand18thcenturies......

perivisceral美[ˌperəvɪsərəl]英[ˌperɪvɪsərəl]adj.[解]内脏周的......

periventricular美[perɪventrɪkjʊlə(r)]英[perɪventrɪkjʊlə(r)]adj.[解](心、脑)室周的例句CerebralC-Tscanandbrainechogramrevealedmultiplecalcificationspotsscatteredonthefrontallobe,caudatenucleusan......

perivascular美[perɪvæskjʊlə(r)]英[perɪvæskjʊlə(r)]adj.[解]血管周的例句PerivascularTlymphocytesaremainlyauxiliary.血管周围的淋巴细胞主要是T辅助。Sincegliomasdonotgivethisperivascularcufffeature......

peritus美[periːtʊs]英[periːtʊs]sp.n.专家；(罗马天主教会的)神学顾问......

peritrichate美[piərɪtrɪʃeɪt]英[piərɪtrɪʃeɪt]adj.周毛的；遍体有毛的......

peritonitis美[ˌperɪtənaɪtɪs]英[ˌperɪtənaɪtɪs]n.腹膜炎英英释义Nouninflammationoftheperitoneum例句用作名词(n.)Abdominalpainisacommonsymptomofperitonitis.腹痛是患了腹膜炎后最常见的症状。......

peritoneum美[ˌperɪtəniəm]英[ˌperɪtəniəm]n.腹膜形容词：peritoneal副词：peritoneally英英释义Nounatransparentmembranethatlinestheabdominalcavityinmammalsandcoversmostoftheviscera例句用作名词(n.)Bleed......

peritoneal美英adj.[解]腹膜的英英释义Adjectiveoforrelatingtooraffectingtheperitoneum;"peritonealcancer"例句用作形容词(adj.)Peritonealcalcificationandpseudocystaredescribedwhenperforationoccurs.在发生穿......

peritonaeum美[perɪtoʊniːəm]英[perɪtəʊniːəm]n.[解]腹膜例句用作名词(n.)Whatdoesacuteperitonaeumneedtonoticeafterperforativeoperation?急性腹膜穿孔手术后需要注意些什么？......

perithelium美[perəθiːlɪəm]英[perəθiːlɪəm]n.[解]周皮英英释义Nountissuelayeraroundsmallbloodvessels......

perithecium美[ˌperəθiːʃɪəm]英[ˌperɪθiːʃɪəm]n.[植](某些真菌的)子囊壳形容词：perithecial名词复数：perithecia英英释义Nounflask-shapedascocarp例句Meliolaperithecium小煤炱囊壳......

peritectoid美[perɪtektɔɪd]英[perɪtektɔɪd]n.转熔体adj.包析的例句TheAl-basedamorphousalloyformsintheperitecticreactionandperitectoidreaction,anditsgrowthvelocityisslow.分析了铝基准晶合金的组织与相......

peritectic美[ˌperətektɪk]英[perɪtektɪk]adj.包晶体的(转熔的)n.包晶体例句Whenseveralcompoundsareformed,thereisthepossibilityofmorethanoneperitecticpoint.当生成数种化合物时,就可能有一个以上的转熔点......

peristyle美[perəˌstaɪl]英[perɪstaɪl]n.列柱走廊形容词：peristylar详细释义n.(名词)列柱廊围柱列列柱围绕的中庭列柱中庭列柱走廊绕柱式以柱围绕的内院【建】周柱式建筑的柱列英英释义Nounacolonnadesurrounding......

peristome美[perɪˌstoʊm]英[perɪstəʊm]n.齿毛；口缘；开口部形容词：peristomal英英释义Noun(botany)fringeoftoothlikeappendagessurroundingthemouthofamosscapsuleregionaroundthemouthinvariousinvertebrates......

peristaltic美[pərɪstæltɪk]英[pərɪstæltɪk]adj.蠕动的例句Theliquidsarepumpedwithaperistalticpump.液体是用蠕动泵来注入的。Restorationofnaturalperistalticmuscleactivity.恢复自然蠕动肌肉活动。Thepe......

peristalsis美[ˌperɪstælsɪs]英[ˌperɪstælsɪs]n.（肠壁）蠕动形容词：peristaltic副词：peristaltically名词复数：peristalses近义词：vermiculation，anastalsis，详细释义n.(名词)【生理】（肠壁）蠕动肠动消化道等蠕动英英释......

peristalith美[pərɪstəlɪθ]英[pərɪstəlɪθ]n.[考古](陵墓等周围的)石柱圈......

perissodactyle美[pərɪsoʊdæktɪl]英[pərɪsəʊdæktɪl]n.奇蹄动物......

perissodactylate美[pərɪsoʊdæktɪlɪt]英[pərɪsəʊdæktɪlɪt]adj.[动]奇蹄的；奇蹄目的......

perissodactyla美英n.[动]奇蹄类动物英英释义Nounnonruminantungulates:horses;tapirs;rhinoceros;extinctforms......

perissodactyl美[pəˌrɪsoʊdæktəl]英[pəˌrɪsəʊdæktl]n.奇蹄动物形容词：perissodactylous近义词：odd-toedungulate，英英释义Nounplacentalmammalshavinghooveswithanoddnumberoftoesoneachfoot......