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42 results for ISOTOPE

11 Shortz Era entries found. Click any date for context. Repeated clues show (number of Shortz Era occurrences).
See the dictionary definition for ISOTOPE.

Thursday, October 24, 201360AUranium 235, e.g.Peter A. Collins
Tuesday, May 3, 201143DMember of a fictional Springfield baseball teamKevan Choset
Thursday, April 24, 20082DElemental form (2)Michael Langwald
Monday, December 26, 200543DHeavy hydrogen, e.g. (2)Allan E. Parrish
Friday, May 14, 200423AElemental form (2)Robert H. Wolfe
Wednesday, March 17, 200412DChemical relativeA. J. Santora
Thursday, August 28, 20034DChemist's studyElizabeth C. Gorski
Sunday, June 9, 200272ACarbon-14, e.g.Randolph Ross
Sunday, July 15, 200188AHeavy hydrogen, e.g. (2)Elizabeth C. Gorski
Sunday, March 28, 199959AElement formCathy Millhauser
Tuesday, February 16, 19999DU-235 or C-14, e.g.Randy Sowell

1 result for ISOTOPE from Variety puzzles.

September 21, 2003acrosticCDeuterium, to hydrogen, e.g.Emily Cox & Henry Rathvon

30 results for ISOTOPE from older pre-Shortz puzzles.

Tuesday, April 19, 198812DU-235 is oneNancy JolineMaleska
Sunday, July 5, 198799DU 235, e.g.Barry L. CohenMaleska
Thursday, December 25, 198644DNuclideNorman WizerMaleska
Monday, April 7, 198653ACarbon 14, for oneVirginia L. YatesMaleska
Saturday, March 15, 198627ACyclotron itemPatterson PeppleMaleska
Monday, August 13, 198454AU 235 is oneEdward BobbMaleska
Friday, November 4, 198329ANuclideBrett A. BlaylockMaleska
Sunday, January 18, 198183DIonium, e.g.William LutwiniakMaleska
Thursday, June 7, 197944DNuclideRobert KatzMaleska
Saturday, March 27, 19762DAtomic formH. Hastings ReddallWeng
Friday, March 12, 197650AAtomic elementAnn JenkinsWeng
Sunday, May 11, 197535AAtomic formTap OsbornWeng
Sunday, July 14, 196816DVaried form of elementJack LuzzattoFarrar
Sunday, April 14, 1968114ANuclide.Diana SessionsFarrar
Sunday, September 25, 196642AAtomist's concern.Eugene MaleskaFarrar
Sunday, July 31, 196023AForm of a chemical element.William A. Lewis Jr.Farrar
Thursday, November 19, 195917AAtomic age word.UnknownFarrar
Wednesday, March 25, 195910DWord in atomic terminology.Sidney LambertFarrar
Thursday, January 15, 195914AU 235 or U 238, for example.Jack LuzzattoFarrar
Sunday, February 16, 195829AElement much like another.Arthur LewisFarrar
Wednesday, January 15, 195817AUranium 238, for instance.Jack LuzzattoFarrar
Friday, July 23, 195421AWord used in Oak Ridge.UnknownFarrar
Friday, May 25, 195140DChemical phenomenon.UnknownFarrar
Thursday, March 8, 19512DOne of several elements, having the same atomic number.UnknownFarrar
Saturday, October 21, 195010DElement resembling another in atomic structure.UnknownFarrar
Sunday, July 30, 195021AUseful form of a chemical element.W. W. WebsterFarrar
Sunday, July 9, 195021AOak Ridge output.Alice H. CookFarrar
Sunday, April 2, 1950101DForm of a chemical element.Leonard GoldbergFarrar
Sunday, December 25, 194923AElement having same atomic number as another.Willard N. JordanFarrar
Sunday, September 25, 194952DElement resembling another in atomic number but not weight.Jack LuzzattoFarrar