a chemical element. Protactinium is a radioactive metal found naturally when uranium decays . 镤（放射性化学元素） Word Originearly 20th cent.: from proto- ‘original, earlier’ + actinium, so named because one of its isotopes decays to form actinium.
🔍 牛津詞典 🎯
🔍 朗文詞典
🔍 劍橋詞典
🔍 柯林斯詞典
🔍 麥美倫詞典
🔍 韋氏詞典
檢索以下詞典：
(Mr. Ng 不推薦使用 Google 翻譯！)
最近搜尋：
- dependent 517
- asset 437
- bevvy 150
- poach 203
- gotham 109
- POLARIZE 90
- fiber 130
- quotation 555
- amphitheatre 193
- superficiality 92
- introverted 172
- prong 253
- ace 368
- superscript 74
- lip 533
- plough 637
- bowl 583
- clustered 64
- Mammon 80
- Symphony 63
- decade 850
- hibernate 207
- tele- 66
- scripted 62
- meanwhile 570
- Tolerate 411
- administer 360
- departure 537
- pollinate 155
- hiatus 256
- Beacon 110
- upholster 77
- Guardian 381
- kiss 555
- rematch 77
- responsible 570
- Date 282
- Antiquity 103
- dacha 99
- pug 93
- ministerial 72
- Scientology™ 58
- Broadcast 259
- exercise 343
- Colony 220
- Culprit 384
- attendant 235
- longer 39
- simper 134
- ivory 140
- cheerily 45
- (the) Pacific Ocean 56
- transcript 89
- Ingest 90
- backfield 119
- becquerel 81
- fulsome 94
- Infrastructure 197
- Down to 77
- Tempting 229
- Knit 111
- Multitude 251
- queenly 65
- Logic 190
- concatenation 199
- bullfighter 122
- dispose 503
- prevention 280
- Scale 221
- smoothy 79
- brake 472
- all-points-bulletin 62
- far 233
- regard 577
- Clarification 43
- disturb 676
- inhabitant 595
- cement 589
- work 566
- executioner 113
- rebuff 108
- the Beeb 105
- black pudding 110
- quagmire 220
- Ebullient 26
- repay 420
- eat 397
- rub 613
- vacillate 262
- surname 608
- gamma 98
- in a heartbeat 74
- identity 567
- gilded 187
- developed 171
- underplay 159
- salt cellar 61
- astonishment 168
- Exterminate 85
- privately 63
- congested 368
- imperfection 242
- Real 209
- doubtful 624
- dream 620
- eyeful 116
- air 381
- Astrologer 84
- nullity 66
- goer 129
- board 675
- ri 65
- portent 72
- knight 91
- Bloat 21
- peculiar 636
- dormouse 122
- sprawl 341
- throne 568
- bottom 601
- Wrinkle 119
- call 494
- strap 769
- cubical 56
- fuel rod 86
- thy 75
- pore 116
- god 319
- enthusiastic 661
- mumble 159
- sidekick 90
- BLOSSOM 87
- odour 577
- invest 545
- wholemeal 59
- sensor 236
- be made of sterner stuff 69
- Editor 179
- medevac 82
- renovate 223
- recommend 589
- Sovereign 319
- eternity 116
- Annihilate 52
- Physicist 128
- Switch 67
- tendency 672
- Cast 238
- presumption 95
- buttery 136
- reverberate 291
- loath 97
- departed 122
- basmati 123
- faith 632
- fungicide 120
- provide 534
- Framework 155
- Least 275
- acknowledge 700
- Compelling 94
- forehead 581
- Tried 89
- subjugate 122
- Ice 133
- toehold 64
- underlay 66
- happy 370
- bestial 238
- Deter 68
- bark 511
- heterozygote 57
- creature 574
- Counselor 80
- waterlogged 82
- jail 587
- contraption 170
- client 212
- godliness 92
- clinker 118
- gang 555
- Where 135
- Rebel 94
- Poisonous 206
- saltiness 42
- deuced 56
- Cockroach 131
- do good 78
- under way 119
- Attribute 275
- ease off 147
- donkey 683
- centralism 159
- troop 724
- din 165
- Memorial 240
- substitute 658
- acrylic 132
- modern 210
- fame 931
- survival of the fittest 37
- CONTEND 70
- polarity 252
- physician 540
- rex 61
- Bottled 86
- Hey 118
- Buffet 240
- favouritism 189
- queens 42
- hunter 147
- consecrated 82
- tidemark 64
- imagination 560
- azalea 132
- slide 679
- theodolite 63
- choreography 128
- Accommodation 292
- pronoun 591
- inflamed 324
- come up 133
- Conceptualize 92
- interrupt 524
- mother 233
- progenitor 178
- larva 139
- ethnocentric 159
- Practical 253
- Burial 115
- biohazard 133
- rooftop 189
- lifetime 498
- April Fool 144
- pronounced 104
- Exploratory 218
- gate 292
- immune 288
- thirst 489
- piper 79
- vcr 69
- mere 572
- representative 528
- piddly 42
- legato 57
- so… that 89
- embattled 89
- audit 165
- prophesy 133
- falsity 142
- Friendship 232
- curvature 139
- tenured 255
- payment 677
- accusation 331
- somber 186
- appendix 223
- gangling 197
- griffin 127
- Vivacious 49
- drive someone to distraction 30
- symbolize 263
- Tome 72
- autarky 74
- karaoke 113
- slightly 486
- Controvert 90
- dopehead 58
- conqueror 95
- wolf 544
- comparison-shop 73
- declaration 319
- penetrate 519
- subject matter 60
- low 332
- chivalry 110
- nc 65
- wasted 243
- compound 601
- Web 240
- ionics 40
- Alarm 105
- minority 479
- supply 737
- Vendetta 70
- disbelief 286
- tarzan 55
- incomprehensible 388
- bloke 168
- PURPOSE 216
- tick off 23
- countenance 116
- Adjustment 278
- carriage 625
- bounteous 112
- viewer 262
- sombre 368
- Skull 62
- escapee 119
- manuscript 160
- dictionary 515
- factorial 109
- wallop 77
- costume 251
- charity 761
- walkyrie 36
- General 314
- Doctor 171
- et cetera 122
- Invent 237
- grasp 980
- whitish 65
- keynote 264
- boyo 222
- parish 252
- scope 526
- administration 523
- concise 381
- puke 103
- charmless 110
- inch 925
- Visible 204
- bewildering 347
- Appreciate 332
- Outback 114
- first class 128
- honourable 761
- Glasses 180
- diddly 108
- civilize 481
- focus 627
- brig 129
- anticlimactic 91
- Medium 171
- cymbal 148
- linger 403
- gazillion 101
- undemocratic 67
- idiot 271
- enhance 525
- paywall 56
- besotted 171
- contradict 342
- valuation 271
- triple 212
- MP 264
- expectorant 125
- Talent 159
- offie 45
- bonk 123
- Tournament 271
- Dreadful 150
- Crisis 345
- lashing 148
- footlights 83
- Fashion 195
- buttercup 118
- Dodgy 130
- tyrannize 64
- didjeridoo 55
- left-handed 117
- Phenomenon 348
- mulish 52
- tablespoon 77
- starburst 65
- damp 632
- SHARPENER 88
- organism 605
- adjust 656
- inimitable 79
- solicit 285
- Preach 126
- doing 152
- bottle 205
- chameleon 172
- Resonate 154
- CAUSE 97
- Fare 154
- Malagasy 60
- sterilization 192
- bisector 58
- reformulate 59
- cradle 188
- foreshorten 123
- Seat 281
- Exhaust 174
- ask 342
- rarely 591
- untouchable 246
- quarterdeck 78
- front runner 132
- church 596
- Afternoon 218
- conversely 398
- drive 489
- dive 748
- retina 139
- forum 236
- moist 732
- sexiness 52
- barbershop 104
- mutual 505
- blemish 435
- anachronism 178
- in itself 22
- Viable 256
- emotion 697
- signification 186
- Clench 15
- Preference 204
- agitation 200
- Sod 187
- prime cost 47
- campaign 618
- cold sweat 122
- recuse 74
- ampere 421
- stare 582
- woodcutter 53
- hindrance 330
- Protecting 44
- SOUND 141
- discernible 168
- o.n.o. 61
- Scar 329
- precision 493
- paediatrician 66
- dish 307
- estimate 723
- theatrical 176
- cuppa 115
- annoyed 298
- day off 144
- Lucky 42
- family 352
- confrontation 333
- notional 219
- bejewelled 145
- beginning 580
- regarding 497
- sunbeam 55
- duel 229
- calm 668
- cost 392
- just about 19
- obstruct 469
- Ponderous 37
- Category 210
- reefer 74
- claim 622
- satsuma 64
- jinxed 60
- Acquire 279
- consolation 136
- ultimate 585
- blank 605
- ad nauseam 122
- tolerant 205
- Consciously 201
- stock 661
- bun 251
- Refrigerate 125
- Track and field 49
- What roads, paths and areas of land do 2
- consistency 250
- salary 542
- sleep 309
- mediate 338
- Vigour 152
- demoralize 284
- deduct 292
- accident and emergency 95
- bucketful 101
- minuscule 109
- quadrille 64
- memorize 287
- interdependent 175
- vituperative 55
- gentle 698
- chocolate 586
- evangelicalism 82
- Handle 224
- yeomanry 67
- accordion 207
- temperate 267
- Integrity 245
- peculiarly 56
- she's 51
- Experiment 183
- fruitless 208
- eyestrain 75
- ultramarine 61
- slinky 83
- crime 728
- sway 901
- adversary 443
- SHRINE 151
- aggressive 721
- plankton 174
- Bloom 279
protactinium
Chemical elements:actinium, alkali metal, americium...
👨🏻🏫 Mr. Ng 牛津詞典 📚 – oxford.mister5️⃣.net
切換為繁體中文