🔍 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：
- Adversary 70
- conveyor 59
- cactus 53
- Host 148
- plantagenet 13
- infinity 56
- Diarrhea 28
- vga 11
- candescent 17
- docudrama 58
- frankfort 12
- viner 8
- stepping 5
- suntanned 7
- unifier 7
- rerun 16
- teamwork 11
- Scorn 93
- reafforest 7
- problematize 7
- conjunctivitis 70
- geotextile 10
- parallel bars 48
- to boot 24
- superabundantly 6
- righteousness 90
- biggish 49
- blackbird 60
- hemorrhage 55
- casework 67
- loom 155
- syllabicity 8
- Lesson 160
- glaucoma 60
- singularities 7
- Spice 20
- corker 52
- Stay up 25
- ridger 9
- colonnade 61
- Pavlovian 29
- reoccurring 5
- undead 8
- proctor 9
- about-face 31
- sister 207
- rejoicingly 7
- purported 10
- Science 157
- last 177
- webcam 8
- length 361
- scudding 7
- polling 34
- alternating current 47
- unsafeness 5
- French polish 42
- RQ 68
- possessional 6
- abase 53
- Overdose 69
- Well 77
- scriptures 6
- preopening 9
- stony 307
- sirup 8
- strati 6
- vegan 98
- alimony 40
- saith 9
- minicomputer 10
- Toilet 76
- priory 11
- sidney 8
- sarky 11
- slim 83
- wash over 25
- resize 9
- puckishly 6
- reasoned 62
- dollar 82
- rapping 8
- infiltrate 147
- habeas corpus 45
- mail 67
- spotlight 176
- extractive 8
- Rigorously 7
- unheedingly 5
- hieroglyphic 10
- hartford 16
- lapsed 17
- Mt 14
- elation 59
- urinous 7
- collate 66
- psalmist 11
- modernism 13
- wainscotting 6
- builder 49
- dot-com 42
- suing 5
- inquiry 316
- fattening 60
- discourage 392
- refoulement 10
- coffin 166
- schist 11
- jangle 50
- pattern 331
- mortician 5
- starches 6
- excavator 57
- ws 8
- chore 161
- pageantry 6
- sanctimonious 76
- upfield 7
- rebirth 92
- Delighted 93
- trendy 46
- magi 10
- heavy 153
- howl 75
- timepiece 9
- laurelling 13
- family 159
- master 396
- confidence 386
- kennel 54
- FABULOUS 142
- lowly 63
- territory 356
- Henry, Cape 58
- Easter egg 192
- premerger 6
- Choral 22
- cinephile 9
- nordic 10
- robbery 330
- rna 10
- SUMMIT 54
- varsity 6
- chain saw 69
- quirky 60
- sloppier 5
- striking 234
- aspiration 154
- sans 11
- impracticability 88
- pucker 11
- insure 311
- stockbroking 7
- rasper 6
- shunting 5
- pakeha 11
- greasy spoon 38
- Hostile 113
- jesuit 12
- saffron 11
- presplit 10
- mouthlike 5
- backlit 37
- heckle 6
- bedraggled 78
- poke 346
- kitchenware 8
- Bog 47
- engage 387
- train 189
- tenterhooks 105
- entertaining 244
- sculpture 198
- faction 151
- solid 344
- mescaline 14
- begrudging 33
- Revolutionize 40
- Uncertainty 110
- patina 14
- eucalyptus 60
- shrimper 9
- fill 228
- deputy 296
- veracity 12
- affecter 6
- cowshed 55
- Status 130
- steepen 11
- Square 94
- frag 313
- banff 30
- newsman 5
- Slum 72
- take a toll 53
- waterproof 297
- lob 20
- mothier 6
- vacuum cleaner 57
- castrate 68
- classically 68
- showtime 97
- ungenerous 8
- venturesome 61
- rigmarole 12
- phat 11
- aggravated 72
- ratio 393
- Argumentative 32
- rivalless 7
- overlie 57
- juristic 6
- aggrieved 66
- audiometer 7
- tar 22
- Impartiality 54
- size 71
- Bedridden 21
- keystone 6
- impress 406
- Passionless 53
- blower 87
- knot 336
- mangy 14
- impeccably 68
- Reevaluate 84
- Poorly 62
- Thankful 164
- mildew 16
- beach ball 54
- syrian 5
- wader 130
- amoeba 87
- AIM 33
- mouthy 16
- pea 380
- explanatory 57
- tsp. 8
- decent 333
- semidetached 10
- explicitly 139
- Mechanical 122
- respectability 65
- Thoughtful 80
- claque 7
- gear 374
- pseud 8
- fabric 417
- Memorial 143
- rhymer 42
- Gratitude 27
- carbon copy 49
- OD 11
- cannibalism 74
- crisis 349
- pilaf 12
- insinuating 16
- asst. 77
- reactionary 12
- transference 10
- Flamboyant 64
- happenstance 12
- winder 10
- tilling 5
- Heart 98
- caffeine 59
- rotund 12
- bury 332
- ironing 14
- unidiomatically 5
- African American 38
- rejoicement 9
- attendee 54
- adjectival 62
- cream tea 42
- cookbook 41
- girls 27
- girl 199
- micromanage 11
- gritty 72
- emancipated 42
- Germany 243
- interagency 17
- file 594
- Standard 91
- singingly 7
- discrepancy 174
- sapful 8
- slapdash 112
- interiorize 12
- mingy 14
- conscientious 154
- blow-dried 32
- gaffe 54
- christening 78
- spacecraft 303
- customize 234
- Unsuitable 94
- cocktail party 54
- cloysome 5
- moonlit 85
- outwork 24
- dust storm 44
- disciple 160
- Leverage 146
- needlewoman 7
- flavory 2
- Satisfy 206
- groyne 41
- widely 303
- gmt 35
- catseye 23
- fire hydrant 37
- dealer 89
- placebo effect 37
- gird 158
- opposite 339
- incredulous 116
- Envelop 31
- Rosemary 103
- savvy 49
- char 353
- eyecup 10
- Burgle 35
- Proposal 134
- trampling 148
- kid 433
- Perfunctory 110
- honeysuckle 5
- australasian 25
- quilted 200
- veil 334
- spanglish 12
- lieutenantry 7
- epo 31
- highborn 8
- ave 48
- heir 349
- bowling alley 49
- stint 14
- paraglider 17
- wherever 352
- conformities 22
- Prioritize 127
- fag 98
- Boom 154
- Doom 166
- tuberculosis 131
- toddlerhood 6
- crane 301
- inure 33
- curt 59
- come-along 32
- backhander 53
- seriously 283
- story 208
- growing pains 42
- Stealth 124
- beloved 332
- Speculation 34
- perinatal 132
- bonfire night 45
- speaking 36
- Nature 126
- Spawn 51
- Supremacy 167
- Vanish 134
- court of law 45
- labor-intensive 21
- fall in 45
- homeopath 3
- furnace 342
- save 410
- unruffled 8
- courteousness 31
- Aside 80
- canvas 304
- scatty 13
- Dowry 33
- bastardize 60
- Navajo 9
- rockiest 5
- big 171
- impatient 341
- unfortunately 311
- heterosexual 100
- staffing 5
- solicitation 111
- cree 9
- multipurpose 10
- backchat 68
- manned 13
- Nutritious 75
- mightily 11
- endurable 51
- preponderant 12
- coloradan 7
- dragoon 50
- Tale 71
- sunward 8
- undiluted 8
- rainbowlike 6
- she's 12
- sandbank 11
- inspire 276
- sf 12
- saturday 11
- surrealistic 12
- metallurgy 11
- skipper 9
- stuck 163
- tit 46
- generosity 68
- intervene 153
- expectation 379
- vixen 10
- waymark 10
- slingback 8
- remorseful 9
- scuzziest 6
- sardine 13
- accompany 342
- housebound 15
- spudder 10
- fulcrum 62
- plumage 12
- mah-jongg 13
- mississippi 9
- participation 52
- Brandy 29
- Exemplary 90
- yowl 22
- supporting 13
- inexactitude 11
- north america 27
- poise 71
- folklore 62
- genitalia 33
- campaign 403
- plait 12
- studies 7
- scanned 6
- stan 11
- prove 343
- shtetlach 6
- populous 10
- Eclipse 36
- cupcake 39
- shute 8
- Volleyball 53
- preannounce 8
- unending 11
- enlightenment 55
- outlive 31
- Cohort 74
- scorer 8
- MO 15
- DM 11
- shoo 12
- precisionist 6
- portend 9
- Grounding 37
- alderney 8
- plies 6
- robberies 6
- remunerative 9
- Originate 62
- ermine 51
- skein 11
- statelet 8
- answer 135
- scram 91
- elderberries 27
- quadrangular 7
- crash landing 89
- prat 13
- serialize 11
- unisex 9
- reefer 12
- Tabasco 13
- boiling point 42
- presidentship 5
- beep 34
- twister 10
- headlight 13
- continental drift 44
- vows 6
- stripy 14
- Turn 104
- Ivory 13
- satnav 10
- partisanship 8
- scrapyard 11
- rennet 8
- hippie 16
- dimwit 56
- pinup 10
- teat 8
- snaggiest 5
- tyrian 6
thorium
noun
tho·ri·um ˈthȯr-ē-əm 
: a radioactive metallic element that is obtained especially from monazite and is usually associated with rare earths see Chemical Elements Table
Example Sentences
Recent Examples on the Web Rare earths, a group of 17 elements near the bottom of the periodic table, are not radioactive, but radioactive contaminants like uranium and thorium occur naturally in rare earth deposits. 
New York Times, 22 Aug. 2022 After accounting for the mineral makeup of NWA 7034, which is highly magnetized and high in potassium and thorium, researchers built an algorithm to narrow down the potential craters that NWA 7034 could originate. Tim Newcomb, Popular Mechanics, 20 July 2022 In the core, the radioactive thorium heats the molten salt, which turns water into steam and activates a turbine to make electricity. Jacopo Prisco, CNN, 3 June 2022 An international team of archaeologists explored Cueva de Ardales from 2011 to 2018, then used radiocarbon and uranium-thorium dating techniques to understand the cave’s history. Sarah Kuta, Smithsonian Magazine, 3 June 2022 These natural uranium isotopes decay into the element thorium, which in turn decays into protactinium, and each has its own isotopes. Artemis Spyrou, The Conversation, 24 May 2022 Below is a video of the moment, with fan music added in, and also the entire video of Hoglund discussing thorium, nuclear power and molten salt reactors. Ryan Parker, The Hollywood Reporter, 14 May 2022 One focus of research is using new fissile materials such as thorium, which is more abundant, produces less waste and has no direct military applications. Gernot Wagner, WSJ, 7 Jan. 2022 The plant received uranium, thorium and beryllium ores between the 1940s and 1967, which is the same year Colonia High School was built. Audrey Conklin, Fox News, 19 Apr. 2022 See More
New York Times, 22 Aug. 2022 After accounting for the mineral makeup of NWA 7034, which is highly magnetized and high in potassium and thorium, researchers built an algorithm to narrow down the potential craters that NWA 7034 could originate. Tim Newcomb, Popular Mechanics, 20 July 2022 In the core, the radioactive thorium heats the molten salt, which turns water into steam and activates a turbine to make electricity. Jacopo Prisco, CNN, 3 June 2022 An international team of archaeologists explored Cueva de Ardales from 2011 to 2018, then used radiocarbon and uranium-thorium dating techniques to understand the cave’s history. Sarah Kuta, Smithsonian Magazine, 3 June 2022 These natural uranium isotopes decay into the element thorium, which in turn decays into protactinium, and each has its own isotopes. Artemis Spyrou, The Conversation, 24 May 2022 Below is a video of the moment, with fan music added in, and also the entire video of Hoglund discussing thorium, nuclear power and molten salt reactors. Ryan Parker, The Hollywood Reporter, 14 May 2022 One focus of research is using new fissile materials such as thorium, which is more abundant, produces less waste and has no direct military applications. Gernot Wagner, WSJ, 7 Jan. 2022 The plant received uranium, thorium and beryllium ores between the 1940s and 1967, which is the same year Colonia High School was built. Audrey Conklin, Fox News, 19 Apr. 2022 See More Word History
Etymology
New Latin, from Old Norse Thōrr Thor
First Known Use
1832, in the meaning defined above
Time Traveler
The first known use of thorium was in 1832 👨🏻🏫 Mr. Ng 韋氏詞典 📚 – mw.mister5️⃣.net
切換為繁體中文