Q: What exceptional words turn into other words by transposition of letters?

A: longest well-mixed transposal

CINEMATOGRAPHER, MEGACHIROPTERAN (15) CENTAUROMACHIAS, MARCHANTIACEOUS (15) [BASIPARACHROMATIN, MARSIPOBRANCHIATA (17)?

longest transposition list for each word length

03: ATE,TAE,TEA,EAT,ETA (5) [AET?

EAR,ERA,AER,ARE,REA (5) YAR,RYA,ARY,RAY,AYR (5)

04: RASE,SERA,REAS,EARS,ARES,ARSE,ERAS,AERS,SEAR (9) [RESA,ESRA? 05: SALET,SETAL,SLATE,TALES,STALE,STEAL,STELA,TEALS,LEATS,TESLA,LEAST,

LATES,LAETS,TAELS,ATLES (15)

06: STALER,SALTER,ARTELS,SLATER,ALERTS,STELAR,RATELS,TALERS,LASTER,ALTERS,

ESTRAL,TARSEL (12) [RELAST,LASTRE,RESALT,RASTLE? PERCAS,PACERS,CRAPES,SCARPE,SPACER,RECAPS,SCRAPE,PARSEC,CAPERS,ESCARP, SPARCE,SECPAR (12)

07: RATINES,NERITAS,RETAINS,TANIERS,STARNIE,RETINAS,STEARIN,STAINER,

RETSINA,RESIANT,ANTSIER,RESTAIN,ANESTRI,NASTIER (14) [ASTERIN,ERANIST?

08: TEARINGS,GANTRIES,ANGRIEST,ASTRINGE,GANISTER,GRANITES,TANGIERS,

ANGRITES,INGRATES,RANGIEST (10) [SATINGER, SIGNATER?

09: TRICOSANE,CREATIONS,REACTIONS,CANOTIERS,ANORETICS,ATROSCINE,CONARITES,

CERTOSINA (8) [OSTRACINE,NARCOTISE,TINOCERAS?

10: CRENATIONS,CONTAINERS,SANCTIONER,COTARNINES,CONNARITES,NARCOTINES (6)

[RESANCTION?

11: CREATIONISM,REACTIONISM,MISCREATION,MARCIONITES,ANISOMETRIC (5)

[ROMANTICISE,RAMISCETION?

12: CONSARCINATE,TRANSOCEANIC,NARCACIONTES,ANACREONTICS (4)

ARENICOLITES,NEOREALISTIC,LECTIONARIES,RICINOLEATES (4)

13: CRETIFICATION,CERTIFICATION,RECTIFICATION (3)

IMPERCEPTIONS,PERCEPTIONISM,MISPERCEPTION (3) [PICTORIALISED,PROIDEALISTIC,PERIDIASTOLIC,PERIODICALIST (4)?

14: CERTIFICATIONS,RECTIFICATIONS,CRETIFICATIONS (3)

BILATERALITIES,RELATABILITIES,ALTERABILITIES (3)

15: NOMOGRAPHICALLY,MONOGRAPHICALLY,PHONOGRAMICALLY (3) [GRAMOPHONICALLY? 16: PATHOPHYSIOLOGIC,PHYSIOPATHOLOGIC (2)

PHOTOCHRONOGRAPH,CHRONOPHOTOGRAPH (2) CONSERVATIONISTS,CONVERSATIONISTS (2) PRECHLORINATIONS,PERCHLORINATIONS (2) SILICOTUNGSTATES,TUNGSTOSILICATES (2) PHOSPHOGLYCERATE,GLYCEROPHOSPHATE (2) PHOTOTELEGRAPHIC,TELEPHOTOGRAPHIC (2) PHOSPHOMOLYBDATE,MOLYBDOPHOSPHATE (2) BIOPSYCHOLOGICAL,PSYCHOBIOLOGICAL (2) INTERNATIONALISM,INTERLAMINATIONS (2) RADIOPHOTOGRAPHS,PHOTORADIOGRAPHS (2) MACROPHOTOGRAPHY,PHOTOMACROGRAPHY (2) MACROPHOTOGRAPHS,PHOTOMACROGRAPHS (2) INTRACRYSTALLINE,INTRACISTERNALLY (2) ALUMINOSILICATES,SILICOALUMINATES (2) PETROGRAPHICALLY,PTERYLOGRAPHICAL (2) CHONDRODYSPLASIA,DYSCHONDROPLASIA (2) SACCULOUTRICULAR,UTRICULOSACCULAR (2) THERMOBAROGRAPHS,BAROTHERMOGRAPHS (2) AUTORADIOGRAPHIC,RADIOAUTOGRAPHIC (2)

17: PHOTOFLUOROMETRIC,FLUOROPHOTOMETRIC (2)

RETINOCHOROIDITIS,CHOROIDORETINITIS (2) SPECTROMICROSCOPE,MICROSPECTROSCOPE (2) IMPRESSIBLENESSES,PERMISSIBLENESSES (2) PHOSPHOTUNGSTATES,TUNGSTOPHOSPHATES (2) PHYSIOPATHOLOGIES,PATHOPHYSIOLOGIES (2) MISREPRESENTATION,REPRESENTATIONISM (2) PYELOURETEROGRAMS,URETEROPYELOGRAMS (2) PHOTOTELEGRAPHIES,TELEPHOTOGRAPHIES (2) PNEUMOHYDROTHORAX,HYDROPNEUMOTHORAX (2) CHRONOPHOTOGRAPHY,PHOTOCHRONOGRAPHY (2) PHOTOCHRONOGRAPHS,CHRONOPHOTOGRAPHS (2) PHOSPHOGLYCERATES,GLYCEROPHOSPHATES (2) PHOTOMICROGRAPHED,MICROPHOTOGRAPHED (2) MICROPHOTOGRAPHIC,PHOTOMICROGRAPHIC (2) MOLYBDOPHOSPHATES,PHOSPHOMOLYBDATES (2) CHONDRODYSPLASIAS,DYSCHONDROPLASIAS (2) AUTORADIOGRAPHIES,RADIOAUTOGRAPHIES (2)

18: PSYCHOPHYSIOLOGIES,PHYSIOPSYCHOLOGIES (2)

REPRESENTATIONISMS,MISREPRESENTATIONS (2) PHOTOMICROGRAPHING,MICROPHOTOGRAPHING (2) PHOTOMICROGRAPHIES,MICROPHOTOGRAPHIES (2) SOCIOPSYCHOLOGICAL,PSYCHOSOCIOLOGICAL (2) HEXAKISTETRAHEDRON,TETRAKISHEXAHEDRON (2) PATHOPHYSIOLOGICAL,PHYSIOPATHOLOGICAL (2) MACROPHOTOGRAPHIES,PHOTOMACROGRAPHIES (2)

19: RETINOCHOROIDITISES,CHOROIDORETINITISES (2)

PNEUMOHYDROTHORAXES,HYDROPNEUMOTHORAXES (2) PHOTOCHRONOGRAPHIES,CHRONOPHOTOGRAPHIES (2) MENINGOENCEPHALITIS,ENCEPHALOMENINGITIS (2) PHYSIOPSYCHOLOGICAL,PSYCHOPHYSIOLOGICAL (2) CORTICOADRENOTROPIC,ADRENOCORTICOTROPIC (2) TETRAKISHEXAHEDRONS,HEXAKISTETRAHEDRONS (2) TRANSUBSTANTIATIONS,TRANSSUBSTANTIATION (2)

21: ENCEPHALOMENINGITISES,MENINGOENCEPHALITISES (2) 27: HYDROXYDEOXYCORTICOSTERONES,HYDROXYDESOXYCORTICOSTERONE (2)

longest letter exchange PERCHLORINATIONS,PRECHLORINATIONS (16)

for each letter 13 : ACCOUTERMENTS,ACCOUTREMENTS 13 : ALTITUDINALLY,LATITUDINALLY 11 : BUFFELHEADS,BUFFLEHEADS 15 : CONCESSIONAIRES,CONCESSIONARIES 14 : DISCREETNESSES,DISCRETENESSES 12 : EDIFICATIONS,DEIFICATIONS 11 : ECTOMORPHIC,CETOMORPHIC 13 : FORWARDNESSES,FROWARDNESSES 13 : FUNCTIONAIRES,FUNCTIONARIES 11 : GUSTINESSES,GUTSINESSES 10 : GEOCENTRIC,EGOCENTRIC 12 : HYPOCHONDERS,HYPOCHONDRES 13 : INSATURATIONS,INSTAURATIONS 07 : JAEGERS,JAGEERS 09 : KAOLIANGS,KOALIANGS 08 : KASTURAS,KATSURAS 11 : LALOPATHIES,ALLOPATHIES 11 : LATERNARIAS,ALTERNARIAS 12 : MILLIONAIRES,MILLIONARIES 12 : NEOGENESISES,NOEGENESISES 11 : NEARTHROSIS,ENARTHROSIS 11 : NIDOLOGISTS,INDOLOGISTS 11 : NONENTRESES,NONENTRESSE 12 : ORTHOCENTERS,ORTHOCENTRES 11 : OPINIASTERS,OPINIASTRES 10 : OCTILLIONS,COTILLIONS 10 : OPTOMETERS,POTOMETERS 16 : PERCHLORINATIONS,PRECHLORINATIONS 14 : PARADISAICALLY,PARADISIACALLY 14 : PERVIOUSNESSES,PREVIOUSNESSES 14 : PETROGRAPHICAL,PTEROGRAPHICAL 13 : QUESTIONAIRES,QUESTIONARIES 12 : RECONNOITERS,RECONNOITRES 11 : REPERTOIRES,REPERTORIES 14 : SACRIFICATIONS,SCARIFICATIONS 12 : TENUIROSTERS,TENUIROSTRES 09 : TOLOACHES,TOOLACHES 08 : THICKEST,THICKSET,THICKETS 11 : USABILITIES,SUABILITIES 10 : UNTHATCHES,NUTHATCHES 10 : URINATIONS,RUINATIONS 07 : VAILING,AVILING 07 : VERSETS,VERSTES 10 : WARRANTIES,WARRANTISE 06 : YAREST,AYREST 05 : YAKAS,YAKSA 05 : YELMS,YLEMS 07 : ZAFFERS,ZAFFRES 05 : ZAMAN,NAMAZ 05 : ZORRA,ARROZ 04 : ZEUS,SUEZ 04 : ZIWS,SWIZ most words in list 4 : ARUAS,AURAS,ARAUS,ARUSA 4 : BAED,ABED,BEAD,BADE 4 : BALAS,BLAAS,BAALS,BALSA 4 : BALE,ABLE,BLAE,BAEL 4 : GORES,OGRES,GOERS,GORSE 4 : LIAS,ILAS,LAIS,LISA 4 : MAIS,AMIS,MIAS,MASI 4 : MARAS,AMRAS,MAARS,MARSA 4 : NAIS,ANIS,NIAS,NASI 4 : RUES,URES,REUS,RUSE 4 : VIAS,IVAS,VAIS,VISA

longest reversal DESSERTS,STRESSED (8)

for each letter 7 : AMAROID,DIORAMA 6 : BRUTED,DETURB 5 : CABOB,BOBAC 5 : CABOT,TOBAC 5 : CAMUS,SUMAC 5 : CANAL,LANAC 5 : CARES,SERAC 5 : CIRES,SERIC 8 : DESSERTS,STRESSED 7 : DENOTES,SETONED 6 : ECITON,NOTICE 6 : ELIDES,SEDILE 6 : ELUTES,SETULE 6 : EVILER,RELIVE 5 : FIRES,SERIF 6 : GANGAN,NAGNAG 6 : HALLAN,NALLAH 5 : ILLUK,KULLI 5 : IZBAS,SABZI 5 : JAMAS,SAMAJ 5 : KAMIA,AIMAK 5 : KAYAN,NAYAK 5 : KEELS,SLEEK 5 : KEETS,STEEK 5 : KITAB,BATIK 5 : KITHS,SHTIK 5 : KNAPS,SPANK 5 : KNITS,STINK 5 : KNOTS,STONK 5 : KNUTS,STUNK 5 : KORAT,TAROK 5 : KRANS,SNARK 6 : LAKOTA,ATOKAL 6 : LAMINA,ANIMAL 6 : LEMMAS,SAMMEL 6 : LEVINS,SNIVEL 6 : LOOTER,RETOOL 6 : MUILLA,ALLIUM 6 : NAILED,DELIAN 6 : NAVARS,SRAVAN 6 : NEDDER,REDDEN 6 : NIMROD,DORMIN 6 : NIZIES,SEIZIN 6 : OTUSES,SESUTO 6 : PUPILS,SLIPUP 8 : REDRAWER,REWARDER 7 : SAGENES,SENEGAS 7 : SETOVER,REVOTES 7 : STINKER,REKNITS 7 : TRESSED,DESSERT 4 : UKUS,SUKU 4 : ULUA,AULU 4 : ULUS,SULU 4 : URUK,KURU 4 : USUS,SUSU 4 : UTIA,AITU 4 : VALS,SLAV 7 : WAH-WAH,HAW-HAW 6 : WARDER,REDRAW 6 : WOLFER,REFLOW 5 : WARTS,STRAW 5 : WORTS,STROW 4 : YAHS,SHAY 4 : YAOS,SOAY 4 : YAPS,SPAY 4 : YARD,DRAY 4 : YAWS,SWAY 5 : ZAMAN,NAMAZ 5 : ZORRA,ARROZ

transposition with deletion, insertion, or substitution

longest well-mixed transdeletion

SONOLUMINESCENCES, UNECONOMICALNESSES (17/18)

longest word transdeletable to a single letter

CONCENTRATIONS-CONSTERNATION-CONTORNIATES-TRANSECTION- STENTORIAN-TRANSIENT-ENTRAINS-NASTIER-ASTERN-TEARS-SATE-TEA-AT-A (14)

longest Baltimore transdeletion (word transdeletable on every letter)

IDOLATERS: DELATORS, SOTERIAL, DILATERS, ASTEROID,

STOLIDER, SOREDIAL, DILATORS, DIASTOLE, TAILORED (9)

shortest word that cannot be transadded to another word SYZYGY (6) longest well-mixed transubstitution

MICROELECTROPHORESIS, SPECTROCOLORIMETRIES (20)

**** All unbracketed words occur in Webster's Third New International Dictionary, Merriam-Webster, Springfield, MA, 1961.

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