🔍 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：
- crevassed 37
- in danger 47
- bottle-feed 85
- red eye 49
- materially 49
- dogwood 109
- move 363
- double chin 118
- jemmy 85
- specialist 514
- nebulizer 24
- assessment 172
- hoodwink 54
- Horde 149
- enzymatically 48
- arcadia 107
- streamlined 67
- statehouse 54
- knowledge 553
- callous 123
- alacrity 107
- Humility 56
- semiautomatic 57
- cipher 209
- mosaiclike 34
- neg 43
- carbon copy 101
- Forget 258
- crash-land 111
- thorny 153
- homier 26
- Evade 117
- off-white 75
- use 435
- chefdom 29
- dabble 117
- golden 537
- flic 37
- singer-songwriter 152
- Worst 135
- okie 39
- parasailing 63
- big top 86
- advertising agency 66
- Cardiovascular 45
- crown colony 41
- awol 115
- feathered 97
- component 492
- extrovert 189
- pom-pom 106
- disburse 175
- rebel 564
- synthesizer 77
- Signatory 15
- Barrister 153
- hippocampus 55
- Heroic 188
- confessionary 58
- skillessness 31
- vape 50
- loan 567
- profundity 65
- rose 597
- collectively 121
- attorney general 130
- go under 105
- justiciary 44
- pocket 584
- first night 78
- overgenerous 43
- Others 52
- matronymic 40
- crate 225
- rhotic 37
- body politic 89
- grout 121
- screw top 70
- perdition 58
- titration 50
- pop-eyed 41
- Vice 183
- drip 486
- precipice 175
- Symbol 290
- cadmic 44
- reflectivity 40
- ride 338
- leitmotif 60
- cutback 144
- complete 586
- humanoid 107
- pomp 162
- whereas 532
- doughnut 131
- infuriating 104
- bête noire 88
- tolerable 68
- colleague 545
- genuflect 125
- Enormous 145
- antiquarian 101
- nonexistence 69
- crow 599
- earthen 84
- rollicking 64
- bended 106
- antiparticle 81
- legalize 86
- Apprehension 214
- campiest 46
- careful 379
- abseil 180
- encrust 67
- readjust 127
- service 277
- smarmy 77
- anthropomorphic 111
- Expeditious 7
- contemplative 129
- Spindle 70
- flummery 52
- footballer 242
- condescend 104
- pkwy 50
- effrontery 140
- doorstep 133
- brainpower 101
- aperture 117
- balloting 118
- sentimental 68
- baddy 55
- epidemiology 111
- gushed 30
- sidewalk 127
- rowing 196
- maddish 34
- jelly 246
- bracing 88
- Mischief 87
- rly 44
- yucky 89
- musketeer 49
- insobriety 40
- Classification 251
- exacerbate 189
- verruca 48
- from (the) cradle to (the) grave 48
- free and easy 90
- snobbery 96
- freshen up 114
- crackerjack 200
- expanding 57
- stern 464
- atheism 197
- uncovered 83
- oaf 147
- cross your fingers 49
- menu 146
- Bloody 83
- bring back 94
- civilization 605
- mollifies 39
- routine 528
- ism 148
- Resign 197
- squeaker 62
- mootable 39
- dunkers 40
- goof around 117
- overthrow 98
- Responsible 256
- dermatologist 96
- Coherent 168
- helpline 53
- bartend 75
- lolly 190
- neurotic 131
- geometric 95
- characterization 123
- mum 83
- Sloth 89
- escalation 162
- jellied 46
- Elderly 149
- action-packed 87
- cons 66
- anti 139
- bolshie 127
- rage 546
- ump 51
- bunkie 40
- ot 105
- profane 61
- canoeing 77
- exorcise 138
- identification 508
- victor 83
- Czechoslovakia 70
- slosh 68
- Tequila 41
- notice 571
- suppress 252
- hubby 77
- nitpicker 44
- timely 191
- oscillator 45
- soon 270
- clarsach 39
- Video 237
- greedily 124
- Overtake 72
- voice-over 69
- Individuality 184
- inflationism 45
- Ample 159
- heraldry 69
- oghamist 30
- tonne 142
- coaxial cable 65
- canoer 61
- body clock 98
- sabotage 260
- huge 509
- laziest 28
- Can 199
- Harvest 101
- defined 131
- whole 604
- tester 73
- revitalize 160
- perplex 157
- force field 106
- lust 187
- sneaky 63
- veganism 28
- antonym 134
- tantrum 242
- remarry 75
- Visitor 145
- falling-out 102
- astringency 81
- printless 35
- ligamentous 40
- scatological 48
- disaffection 79
- computerdom 54
- vermouth 65
- chestful 61
- hawk 519
- usurious 68
- Confine 227
- damp course 68
- Addicted 152
- creep 527
- schnapps 57
- giblets 79
- overdress 70
- life-affirming 58
- videoconference 51
- more 340
- Anglo 83
- Ornamental 89
- writing 547
- tabard 48
- Irresistible 149
- globalist 31
- miner 439
- until 218
- foursquare 111
- barkeep 105
- flighty 129
- mrs. 32
- hours 46
- freezer 146
- provision 664
- flunk 161
- scent 592
- Spoilage 30
- priggish 80
- abundant 426
- SARCASTIC 94
- assuage 158
- Superb 218
- wake-up 38
- directorate 116
- Vary 158
- log 582
- whack 96
- neighborhood 511
- accession 121
- Inhabitant 87
- art deco 93
- coast guard 106
- eclair 56
- phantomlike 34
- patina 76
- Admirable 100
- Cancellation 226
- Institutional 5
- Mainstream 280
- Syllabus 193
- Impulsive 157
- permissible 96
- clownish 114
- gy 97
- plea 271
- compare 586
- animation 161
- unique 534
- COMPLAIN 69
- contortionist 106
- mislaid 30
- cram 177
- anklet 129
- drink up 96
- insufficient 470
- cans 47
- Shiny 166
- workout 217
- crisply 130
- gamiest 28
- neurotypical 42
- disruptive 184
- clubby 133
- direct debit 95
- airbrush 124
- bumblebee 117
- Samoa 70
- Led 168
- unrestrained 170
- Deduction 30
- Casual 127
- Pedigree 180
- book value 125
- pump up 108
- vitrified 28
- salmon 226
- mansion 157
- schoolchild 175
- robotically 40
- curry 168
- hustle 195
- nibs 60
- patty 79
- harassment 162
- herd 512
- disappearance 117
- slat 83
- tragically 147
- Jr 91
- disaggregate 55
- sanitary 158
- cornrow 66
- dirtier 47
- adman 110
- repast 66
- inc 66
- tour of duty 12
- coat check 78
- Outpost 147
- plurals 38
- phraseologies 36
- industrialize 467
- boob tube 90
- cure 539
- screwy 125
- curative 113
- stamp 194
- wk 83
- upstage 91
- bilharzia 79
- indistinguishable 106
- polenta 36
- tenderize 70
- minus 454
- perception 200
- Dysfunctional 40
- forklift 91
- colossus 124
- smeltery 24
- backside 113
- a lot 47
- athletic 224
- newspaper 284
- Vain 95
- Unaware 206
- brown sugar 78
- Optician 14
- Right 190
- half-price 81
- Investigator 53
- SPIKE 88
- mac 210
- crown 567
- gear 583
- the fair sex 81
- growing pains 102
- messaging 48
- modularly 33
- intersperse 125
- purlieu 67
- farther 493
- household 484
- fetlock 110
- oversize 79
- lawsuit 101
- canvass 104
- pull out 122
- allusive 109
- sand 532
- Encroach 83
- taintless 31
- shimmy 93
- bohemianism 124
- promise 503
- agents 40
- interracial 60
- persistently 127
- scroll 172
- up-to-the-minute 52
- Getaway 54
- crazy quilt 106
- Also 107
- hibachi 59
- rotary 455
- precedent 87
- press on 114
- lady 485
- Blab 18
- plasm 44
- publisher 232
- baby 184
- mythology 96
- unopposed 103
- optional 473
- holism 122
- munch 202
- jettisonable 30
- di- 91
- as much 67
- rehydrate 30
- oxymora 28
- Pale 181
- deliveries 56
- lento 43
- doughnutlike 46
- buoyantly 68
- continual 457
- faint 591
- flex-fuel 66
- carpal 49
- omelet 188
- cogitate 133
- oversubscribed 145
- carjacking 123
- honoraria 29
- chew out 71
- down-and-out 84
- present 265
- Hoarse 53
- tradesman 70
- Withdrawal 80
- dimmed 48
- midterm 61
- Faults 121
- min. 31
- networking 120
- infold 38
- trap 575
- Seductive 58
- integrationist 63
- frisian 62
- appose 59
- nirvana 57
- character 582
- panelling 33
- merchant bank 121
- pure 415
- erase 209
- schedule 562
- odometer 53
- Weed 117
- exaction 36
- sixtieth 44
- caucasian 78
- doth 61
- blood bank 108
- reveals 50
- patrolmen 28
- bombproof 128
- martyr 346
- stapler 63
- natter 90
- half-truth 87
- pace off 93
- swipes 57
- rent 479
- gabon 107
- discovery 484
iridium
noun
irid·i·um i-ˈri-dē-əm 
: a rare silver-white hard brittle very heavy metallic element see Chemical Elements Table
Example Sentences
Recent Examples on the Web Melted pottery shards, which melt at temperatures above 1500C. Mudbricks, that melt above 1400C. A host of melted elements and minerals, such as platinum, iridium, and quartz. 
Elizabeth Fernandez, Forbes, 23 Sep. 2021 In Colorado, for instance, 27 buildings house scary-sounding elements such as cesium 137, cobalt 60, americium 241 and iridium 192. Sarah Scoles, Scientific American, 11 Mar. 2022 What's more, the fish were found just beneath a layer of rock known as the iridium anomaly, which is rich in a dense element common in asteroids and rare on Earth. Katie Hunt, CNN, 23 Feb. 2022 In addition to iridium, the crater section showed elevated levels of other elements associated with asteroid material. David Bressan, Forbes, 24 Feb. 2021 Here’s the research setup: A woman speaks Dutch into a microphone, while 11 tiny needles made of platinum and iridium record her brain waves. Adam Rogers, Wired, 9 Nov. 2021 In addition, the surfaces of the pottery and meltglass are speckled with tiny melted metallic grains, including iridium with a melting point of 4,435 F (2,466 C), platinum that melts at 3,215 F (1,768 C) and zirconium silicate at 2,800 F (1,540 C). Christopher R. Moore, The Conversation, 20 Sep. 2021 The core helped to precisely date the sediments containing iridium-rich dust. David Bressan, Forbes, 24 Feb. 2021 The Census Bureau’s count for other precious metals includes silver, platinum, palladium and more obscure sources such as ruthenium and iridium. Dian Zhang, USA TODAY, 3 Mar. 2021 See More
Elizabeth Fernandez, Forbes, 23 Sep. 2021 In Colorado, for instance, 27 buildings house scary-sounding elements such as cesium 137, cobalt 60, americium 241 and iridium 192. Sarah Scoles, Scientific American, 11 Mar. 2022 What's more, the fish were found just beneath a layer of rock known as the iridium anomaly, which is rich in a dense element common in asteroids and rare on Earth. Katie Hunt, CNN, 23 Feb. 2022 In addition to iridium, the crater section showed elevated levels of other elements associated with asteroid material. David Bressan, Forbes, 24 Feb. 2021 Here’s the research setup: A woman speaks Dutch into a microphone, while 11 tiny needles made of platinum and iridium record her brain waves. Adam Rogers, Wired, 9 Nov. 2021 In addition, the surfaces of the pottery and meltglass are speckled with tiny melted metallic grains, including iridium with a melting point of 4,435 F (2,466 C), platinum that melts at 3,215 F (1,768 C) and zirconium silicate at 2,800 F (1,540 C). Christopher R. Moore, The Conversation, 20 Sep. 2021 The core helped to precisely date the sediments containing iridium-rich dust. David Bressan, Forbes, 24 Feb. 2021 The Census Bureau’s count for other precious metals includes silver, platinum, palladium and more obscure sources such as ruthenium and iridium. Dian Zhang, USA TODAY, 3 Mar. 2021 See More Word History
Etymology
Greek īrid-, îris "rainbow, iridescent halo around the moon, a flame, etc., iris entry 1" + New Latin -ium -ium; from the colors produced by dissolving it in hydrochloric acid
Note: The word iridium was introduced by the English chemist Smithson Tennant (1761-1815) in Philosophical Transactions of the Royal Society, 1804, Part II, p. 414: "As it is necessary to give some name to bodies which have not been known before, and most convenient to indicate by it some characteristic property, I should incline to call this metal Iridium, from the striking variety of colours which it gives, while dissolving in marine acid." See also osmium.
First Known Use
1804, in the meaning defined above
Time Traveler
The first known use of iridium was in 1804 👨🏻🏫 Mr. Ng 韋氏詞典 📚 – mw.mister5️⃣.net
切換為繁體中文