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- Quest 197
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- orientated 105
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- yearlong 52
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- effortful 88
- bush league 83
- far-flung 82
- investiture 50
- agreeable 263
- porn 88
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- Leader 215
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- levity 61
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- Imponderable 120
- stilt 92
- inhabiter 35
- Conflate 16
- in essence 10
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- auditing 62
- skilled 547
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- dump truck 104
- reissue 77
- ex-con 58
- Contingency 16
- unopened 70
- construct 496
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- gardens 45
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- huff 274
- tiro 43
- fuck off 119
- diss 84
- Mediate 38
- accentuator 40
- defense 271
- drip 491
- nickname 239
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- better luck next time 54
- cheesecloth 122
- hopingly 38
- dungaree 136
- scaremonger 190
- contradictories 44
- value 816
- dot-com 90
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- clumps 77
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- thinkable 75
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- doctor 285
- apt 171
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- practical 600
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- tae 59
- bogey 158
- mademoiselle 55
- Ban 190
- mines 52
- dehumidify 78
- Mission 208
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- loss 542
- lensless 28
- cameroonian 77
- pneumonia 300
- après-ski 89
- winding 85
- attar 53
- geek 132
- folly 152
- hobber 39
- stand up for 18
- Cavity 30
- marxism 47
- direction 603
- ashes 62
- Jabberwocky 41
- enterprising 106
- KY 108
- wait 182
- safflower 43
- dame 112
- subsidiary 201
- Netherlands 78
- deterrent 244
- Lucky 39
- Cell 230
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- pazazz 44
- predominately 65
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- annotated 109
- Sullen 147
- Reap 79
- Adjunct 25
- gobble 201
- graphic 215
- launceston 38
- dormer 124
- Saskatchewan 101
- flyer 200
- Stitch 132
- enforcement 171
- broad-spectrum 49
- Decrement 11
- phoenician 52
- bad apple 38
- edgewise 120
- penning 36
- shotgun 249
- business card 107
- grand tour 100
- block sth out 76
- tailgating 44
- gunnysack 124
- pH 99
- upspeak 41
- minion 145
- abandon 522
- incorporeity 36
- occasion 718
- Brothel 128
- rife 86
- cruller 97
- dispersible 48
- harsh 548
- cut 382
- falsifiability 55
- bear up 82
- nonstarter 74
- township 167
- crème 10
- glut 142
- lively 471
- fleet 509
- closed-circuit 89
- Rankle 48
- crippledom 58
- half-cocked 83
- flambe 34
- dissonance 105
- officialize 50
- digerati 86
- Justifiable 141
- teetotal 59
- liquidize 52
- garrulous 124
- northwest 439
- diskless 67
- Whether 221
- mountainy 40
- beleaguered 115
- nymphish 36
- Platform 282
- madagascar 58
- hesitate 527
- birding 108
- disconcert 150
- kimono 102
- pk 90
- iq 88
- crybaby 139
- minneapolis 48
- jar 550
- deodorize 81
- tuvalu 53
- Massachusetts 11
- acid 509
- affable 212
- Trollers 47
- Nursery 61
- ratification 71
- satchel 200
- rudderless 40
- maim 64
- tabernacle 74
- Equipments 42
- grannies 49
- mingy 79
- pallbearer 61
- color blindness 113
- Solvent 203
- Gently 71
- pejorative 144
- decaliter 41
- Guyana 74
- ponder 240
- spent 100
- irrefragable 52
- indefinable 63
- fete 237
- circularize 59
- suspender 90
- Mafia 14
- stir-fried 41
- radiologist 96
- daisy chain 96
- leaky 91
- suffering 243
- chimney 468
- citronella 121
- iamb 78
- Scruple 37
- solemnize 201
- fight 509
- fan base 57
- adult education 79
- odds and ends 113
- munge 43
- jehovah 57
- declarative 122
- Ingredients 41
- cozy 290
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- Believe 216
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- gloat 232
- lording 41
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- runniness 39
- pimply 51
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- accomplished 175
- casualty 140
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- mend 136
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- institution 510
- starchy 94
- sharecropper 63
- expurgated 51
- Interim 45
- rhapsodies 28
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- mediaeval 45
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- pricker 38
- kechua 50
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- flavor 305
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- bud 1227
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- la-la land 64
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- instituted 32
- penultimately 25
- Attempted 16
- supplication 118
- skedaddle 63
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- scrum 86
- accentual 72
- wave 597
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- self-centered 229
- dis 155
- Denver boot 88
- tubercular 49
- deodorizer 69
- Modern 182
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- fleshliest 36
- railing 199
- grow 252
- hash 87
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- criterion 190
- to the core 45
- vogue 286
- beery 132
- toot 98
- wanna 56
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- fire 314
- cassock 105
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- infighting 65
- successive 462
- nickeled 48
- ddt 127
- hyphenated 83
- pandemoniac 41
- abominable 133
- chalet 188
- décolleté 52
- Squash 184
- Furniture 168
- christianity 106
- letterboxed 47
- Capacity 319
- pimple 94
- deed 515
- cheer 522
- low-cut 48
- patella 70
- Horror 170
- ad hoc 137
- cut down 145
- downloading 60
- multiethnic 52
- foreseeable 195
- bring on 114
- reorganize 80
- thursdays 36
- bulb 467
- Restorative 19
- peptide 48
- Nun 110
- trudge 262
- circumstantial 118
- Instil 19
- Modest 81
- artificial 511
- clowning 64
- cover girl 112
- in order 78
- immunosuppress 45
- unlidded 39
- paddling pool 108
- freudian 79
- senegalese 42
- where 222
- détente 104
- penitential 59
- defence 373
- cross-cultural 87
- alternating current 105
- mesh 184
- cjd 96
- rejectingly 38
- luggage 525
- caterer 123
- hero 536
- dragged 43
- cosignatory 73
- backlight 50
- lissome 82
- blind spot 118
- also 235
- dreamy 139
- nomenclatural 29
- imbed 45
- totalling 31
- crackdown 244
- eye-opener 79
- sexy 89
- Names 57
- fleeceless 35
- strum 74
- Respectable 59
- pigmy 58
- nra 43
- grow up 131
- creolisation 36
- litigation 250
- extort 105
- hypotaxis 40
- bakeshop 76
- roller-coaster 82
- refresher 62
- argument 643
- colorism 36
- label 547
- donee 68
- enumerable 37
- bout 186
- depredation 82
- elegance 225
- Gravitation 67
- quietly 128
- oink 61
- credibility gap 75
- scuffle 111
isotope
noun
iso·tope ˈī-sə-ˌtōp 
Example Sentences
Recent Examples on the Web Tritium, a second isotope of the same material, may be there as well. 
Kat Friedrich, Popular Mechanics, 13 Sep. 2022 This is called paleolimnology, where researchers take the mud out of the bottom of lakes and scan that sediment for an isotope, Nitrogen-15. Isabelle Ross, Anchorage Daily News, 21 July 2022 This isotope buildup is calibrated to temperature, but that calibration requires knowing ocean salinity and how much water is locked up in ice caps. Howard Lee, Ars Technica, 30 Aug. 2022 Together, the two produce an isotope called germanium 71. Caroline Delbert, Popular Mechanics, 11 July 2022 The isotope records suggested that the fish's annual growth, which would coincide with the peak availability of its prey in summer, hadn't yet been reached. Katie Hunt, CNN, 23 Feb. 2022 The team also discovered another cluster of outlying isotope compositions dated between 1648 and 1660, years that correspond to the Eighty Years’ War or the Dutch War of Independence, according to UPI. Nora Mcgreevy, Smithsonian Magazine, 16 Dec. 2021 The second is the oxygen isotope ratios themselves. John Timmer, Ars Technica, 11 Aug. 2022 Atom Computing creates spin qubits by using unique energy levels in the isotope Strontium-87. Paul Smith-goodson, Forbes, 2 June 2022 See More
Kat Friedrich, Popular Mechanics, 13 Sep. 2022 This is called paleolimnology, where researchers take the mud out of the bottom of lakes and scan that sediment for an isotope, Nitrogen-15. Isabelle Ross, Anchorage Daily News, 21 July 2022 This isotope buildup is calibrated to temperature, but that calibration requires knowing ocean salinity and how much water is locked up in ice caps. Howard Lee, Ars Technica, 30 Aug. 2022 Together, the two produce an isotope called germanium 71. Caroline Delbert, Popular Mechanics, 11 July 2022 The isotope records suggested that the fish's annual growth, which would coincide with the peak availability of its prey in summer, hadn't yet been reached. Katie Hunt, CNN, 23 Feb. 2022 The team also discovered another cluster of outlying isotope compositions dated between 1648 and 1660, years that correspond to the Eighty Years’ War or the Dutch War of Independence, according to UPI. Nora Mcgreevy, Smithsonian Magazine, 16 Dec. 2021 The second is the oxygen isotope ratios themselves. John Timmer, Ars Technica, 11 Aug. 2022 Atom Computing creates spin qubits by using unique energy levels in the isotope Strontium-87. Paul Smith-goodson, Forbes, 2 June 2022 See More Word History
Etymology
is- + Greek topos place
First Known Use
1913, in the meaning defined at sense 1
Time Traveler
The first known use of isotope was in 1913 👨🏻🏫 Mr. Ng 韋氏詞典 📚 – mw.mister5️⃣.net
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