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64 results for SIGMA

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

Thursday, May 26, 201655ALetter before 7-DownAndrew Zhou
Sunday, June 14, 201599AStandard deviation symbol (5)Randolph Ross
Sunday, March 1, 201548AWith 65-Down, 160-year-old fraternity founded at Miami University of OhioFinn Vigeland
Tuesday, October 21, 201444AΣPatrick Blindauer
Saturday, January 11, 201439ASum symbolMartin Ashwood-Smith
Sunday, February 17, 20131ASummation symbol in math (2)Ian Livengood and J.A.S.A. Crossword Class
Tuesday, April 17, 201251DSummation symbol in math (2)Milo Beckman
Monday, April 2, 20129DGreek "S" (2)Lynn Lempel
Sunday, January 22, 201227AHead of ancient Sparta?Adam Fromm
Tuesday, June 21, 201159ASummation signifier, in mathKelsey Boes
Thursday, November 19, 20096ASymbol in a Riemann sumTyler Hinman and Jeremy Horwitz
Tuesday, September 29, 200951DSummation symbolPaula Gamache
Sunday, March 15, 2009109DArithmetic series symbolPatrick Berry
Saturday, November 4, 200625DStandard deviation symbol (5)Rich Norris
Tuesday, December 6, 200566ACalculus symbolNancy Salomon
Sunday, February 15, 2004107AStandard deviation symbol (5)Derrick Niederman
Saturday, January 3, 20045AStandard deviation symbol (5)James M. and James C. Jenista
Sunday, August 18, 2002103D___ Society (super-high I.Q. group)Michael Ashley
Wednesday, July 24, 200246DScience society ___ XiEric Berlin
Sunday, September 30, 200158DSymbol of conductivityCon Pederson
Sunday, July 15, 200129DStandard deviation symbol (5)Elizabeth C. Gorski
Saturday, December 2, 200052DFraternity letterDavid J. Kahn
Tuesday, June 15, 19999A___ Alpha Epsilon fraternityStephanie Spadaccini
Tuesday, March 23, 199955AGreek S (2)Nathaniel Weiss
Monday, April 28, 199762AGreek letterPeter Gordon

2 results for SIGMA from Variety puzzles.

September 19, 2010cryptic18AFraternity symbol, sign and map left incomplete (5)Emily Cox & Henry Rathvon
August 6, 2000panda23AMagi's characterMel Taub

37 results for SIGMA from older pre-Shortz puzzles.

Thursday, August 1, 199125D" . . . sweetheart of ___ Chi"Eli WesoffMaleska
Monday, May 13, 19915ATau's predecessorArthur S. VerdescaMaleska
Saturday, May 5, 199017AFrat letterDaniel GirardiMaleska
Sunday, September 24, 198956DEssIrene SmullyanMaleska
Thursday, August 25, 198826DGreek letterWilliam CanineMaleska
Sunday, August 24, 19869A"The Sweetheart of ___ Chi"Arnold MossMaleska
Sunday, September 30, 198495AMillesecondHarriet Gilson RosenbergMaleska
Wednesday, July 25, 198441AGreek letterWhittenMaleska
Friday, June 18, 19826DStart for SophoclesI. Judah KoolykMaleska
Wednesday, July 29, 198121DGreek letterJeanette K. BrillMaleska
Sunday, July 26, 198154DBetween rho and tauMaura B. JacobsonMaleska
Sunday, January 11, 198168DSummation symbolStanley GlassMaleska
Sunday, March 20, 197735DMillisecondRuth N. SchultzMaleska
Sunday, December 5, 1976111DGreek letterMaura B. JacobsonWeng
Sunday, September 9, 1973117DGreek letterGladys V. MillerWeng
Saturday, June 10, 197244DGreek letterUnknownWeng
Wednesday, October 9, 196843AGreek letter.UnknownFarrar
Sunday, July 28, 196894AGreek letterSidney LambertFarrar
Monday, March 11, 196830AGreek letter.UnknownFarrar
Sunday, August 13, 196710AGreek letter.Hume R. CraftFarrar
Sunday, April 2, 196750AGreek letter.A. J. SantoraFarrar
Saturday, December 10, 19661AGreek letter.UnknownFarrar
Wednesday, September 30, 19648DFraternity letter.UnknownFarrar
Sunday, November 24, 196350D___ Chi.Eugene T. MaleskaFarrar
Thursday, December 6, 196246D___ VII.UnknownFarrar
Sunday, November 4, 196261AWally's ___ 7.Diana SessionsFarrar
Monday, January 29, 196239DGreek letter.Bettie Lou FisherFarrar
Sunday, August 6, 19614AGreek letter.Christine ValenceFarrar
Tuesday, June 27, 196156AGreek letter.UnknownFarrar
Saturday, December 31, 196050DGreek letter.UnknownFarrar
Thursday, June 18, 19598AGreek letter.S. A. KayFarrar
Monday, December 23, 19575DGreek letter.UnknownFarrar
Saturday, October 1, 19556D___ Chi.Mel TaubFarrar
Tuesday, March 23, 195449DGreek letter.UnknownFarrar
Monday, February 23, 195317A___ Xi, fraternity for science research.Edward BucklerFarrar
Sunday, April 30, 1950119AGreek "S."Harold T. BersFarrar
Sunday, December 21, 1947107DGreek letter.Elizabeth JacksonFarrar