There are 545 thirteen-letter words containing A, H, P, R and T, https://www.bestwordlist.com/c/a/5/13letterwordswithahprt.htm ACHROMATOPSIA ACTINOMORPHIC ACTINOTHERAPY ADIAPHORISTIC AETHRIOSCOPES ALPHABETARIAN ALPHABETIFORM ALPHABETISERS ALPHABETIZERS AMPHIGASTRIUM AMPHIPROSTYLE AMPHITHEATERS AMPHITHEATRAL AMPHITHEATRES AMPHITHEATRIC AMPHITRICHOUS ANTHROPOGENIC ANTHROPOLATRY ANTHROPOMETRY ANTHROPOMORPH ANTHROPOPATHY ANTHROPOPHAGI ANTHROPOPHAGY ANTHROPOPHYTE ANTHROPOSOPHY ANTIAPARTHEID ANTINEPHRITIC ANTIPHONARIES ANTISTROPHONS AORTOGRAPHIES APHANIPTEROUS APHELIOTROPIC APOCHROMATISM APOSTROPHISED APOSTROPHISES APOSTROPHIZED APOSTROPHIZES APOSTROPHUSES ARCHAEOPTERYX ARCTOPHILISTS ARITHMOPHOBIA ARTERIOGRAPHY ARTHROPATHIES ARTHROSCOPIES ARTHROSPOROUS ASPHETERISING ASPHETERIZING ASTHENOSPHERE ASTRAPOPHOBIA ASTROPHYSICAL ATMOSPHERICAL ATTORNEYSHIPS AUTOBIOGRAPHY AUTOGRAPHICAL AUTOMORPHISMS AZATHIOPRINES BACTERIOPHAGE BACTERIOPHAGY BALNEOTHERAPY BARRISTERSHIP BIBLIOTHERAPY BLASTOSPHERES BLEPHARITISES BLEPHAROPLAST BRACHYPTERISM BRACHYPTEROUS BRACHYTHERAPY BREASTPLOUGHS CALLIGRAPHIST CARDIOPATHIES CARTOGRAPHERS CARTOGRAPHIES CARTOPHILISTS CATASTROPHISM CATASTROPHIST CATHODOGRAPHS CATHODOGRAPHY CEPHALOMETERS CEPHALOMETRIC CEPHALOTHORAX CEROGRAPHISTS CHALCOPYRITES CHAPTERHOUSES CHARTOGRAPHER CHARTOGRAPHIC CHEMAUTOTROPH CHEMOAUTROPHS CHIROGRAPHIST CHIROPRACTICS CHIROPRACTORS CHLOROPLASTAL CHLOROPLASTIC CHROMATOGRAPH CHROMATOPHORE CHROMATOPSIAS CHROMOTHERAPY CHRONOTHERAPY CINEMATOGRAPH CLAUSTROPHOBE CLIMATOGRAPHY COADJUTORSHIP COAUTHORSHIPS CONTAINERSHIP COPARTNERSHIP COPROPHAGISTS COPYRIGHTABLE COSMOGRAPHIST CRAFTMANSHIPS CRAFTSMANSHIP CREATURESHIPS CRYOTHERAPIES CRYPTESTHESIA CRYPTOGRAPHER CRYPTOGRAPHIC CYSTOGRAPHIES DACTYLOGRAPHY DEMOGRAPHISTS DEPHLEGMATORS DERMATOGRAPHY DERMATOPHYTES DERMATOPHYTIC DESULPHURATED DESULPHURATES DIAPHANOMETER DIAPHOTOTROPY DIAPHRAGMATIC DIAPHRAGMITIS DIASTROPHISMS DICTATORSHIPS DITTOGRAPHIES DRAFTSMANSHIP DRAUGHTPROOFS ELECTROGRAPHS ELECTROGRAPHY ENANTIOMORPHS ENANTIOMORPHY ENTEROPATHIES EPICHEIREMATA EPITRACHELION ERGATOMORPHIC ERYTHROPENIAS ERYTHROPHOBIA ETHNOGRAPHERS ETHNOGRAPHICA ETHNOGRAPHIES GASTROSOPHERS GASTROSOPHIES GERONTOPHILIA GERONTOPHOBIA GLADIATORSHIP GLYPTOGRAPHER GLYPTOGRAPHIC GONADOTROPHIC GONADOTROPHIN GRADUATESHIPS GRAMOPHONISTS GRANTSMANSHIP GRAPHITISABLE GRAPHITIZABLE GRAPHOLOGISTS HAEMOPROTEINS HAGIOGRAPHIST HAIRSPLITTERS HAIRSPLITTING HAPTOTROPISMS HARUSPICATING HARUSPICATION HECTOGRAPHIES HECTOGRAPHING HELIOTROPICAL HEMIPARASITES HEMIPARASITIC HEPTAMETRICAL HERMAPHRODITE HERPETOFAUNAE HERPETOFAUNAS HETEROCARPOUS HETEROGRAPHIC HETEROPLASIAS HETEROPLASTIC HETEROPTERANS HETEROTYPICAL HIPPOCENTAURS HOLOPARASITES HOLOPARASITIC HORRIPILATING HORRIPILATION HOUSEPAINTERS HYDNOCARPATES HYDROPATHICAL HYDROPATHISTS HYDROSULPHATE HYDROTHERAPIC HYETOGRAPHIES HYMENOPTERANS HYPERACTIVITY HYPERACUITIES HYPERCAUTIOUS HYPERCRITICAL HYPERESTHESIA HYPERINFLATED HYPERMETRICAL HYPERMETROPIA HYPERPARASITE HYPERRATIONAL HYPERREACTIVE HYPERREACTORS HYPERREALISTS HYPERROMANTIC HYPERSALINITY HYPERSTHENIAS HYPERTHERMIAS HYPERVIGILANT HYPONATRAEMIA HYPONATRAEMIC HYPONATREMIAS HYPOPITUITARY HYPOTHECATORS HYPSOMETRICAL IMMUNOTHERAPY IMPERATORSHIP INTERCHAPTERS INTERHOSPITAL JUSTICIARSHIP KINEMATOGRAPH KINESITHERAPY LAUREATESHIPS LITHOGRAPHERS LITHOGRAPHIES LITHOGRAPHING LYCANTHROPIES LYCANTHROPIST MAGNETOGRAPHS MAGNETOSPHERE MASTIGOPHORAN MASTIGOPHORES MASTIGOPHORIC MEDIATORSHIPS MESOTHERAPIES METALLOGRAPHY METAMORPHISMS METAMORPHISTS METAMORPHOSED METAMORPHOSES METAMORPHOSIS METEOROGRAPHS MISANTHROPIES MISANTHROPIST MODERATORSHIP MONOGRAPHISTS MONOTHERAPIES MUSICOTHERAPY MYTHOGRAPHERS MYTHOGRAPHIES NATUROPATHIES NEPHROPATHIES NEUROPATHICAL NEUROPATHISTS ODONTOPHORANS OMMATOPHOROUS OPENHEARTEDLY OPISTHOBRANCH OPISTHOGRAPHS OPISTHOGRAPHY ORGANOTHERAPY ORNITHOPHOBIA ORTHOCEPHALIC ORTHOEPICALLY ORTHOGRAPHERS ORTHOGRAPHIES ORTHOGRAPHIST ORTHOPAEDICAL ORTHOPAEDISTS ORTHOPINAKOID OSTEOGRAPHIES OSTREOPHAGIES OSTREOPHAGOUS PAEDOTROPHIES PAMPHLETEERED PANCHROMATISM PANTOGRAPHERS PANTOGRAPHIES PARAESTHESIAS PARAGNATHISMS PARAGRAPHISTS PARASYNTHESES PARASYNTHESIS PARASYNTHETIC PARASYNTHETON PARATHORMONES PARCHMENTIEST PARCHMENTISED PARCHMENTISES PARCHMENTIZED PARCHMENTIZES PARENTHESISED PARENTHESISES PARENTHESIZED PARENTHESIZES PARENTHETICAL PARTHENOCARPY PARTHENOGENIC PARTHENOSPORE PARTISANSHIPS PARTIZANSHIPS PATHOGRAPHIES PATRIARCHALLY PATRIARCHATES PATRIARCHISMS PELOTHERAPIES PENTAHYDRATES PENTHEMIMERAL PERIHEPATITIS PERIPHERALITY PERISHABILITY PETROCHEMICAL PETROGRAPHERS PETROGRAPHIES PETROPHYSICAL PHALANSTERIAN PHALANSTERIES PHALANSTERISM PHALANSTERIST PHALLOCENTRIC PHANEROPHYTES PHANTASMAGORY PHARMACEUTICS PHARMACEUTIST PHARYNGITIDES PHARYNGITISES PHENANTHRENES PHENMETRAZINE PHENOBARBITAL PHILANTHROPES PHILANTHROPIC PHONAUTOGRAPH PHONOGRAPHIST PHONOMETRICAL PHOSPHATURIAS PHOSPHORATING PHOSPHORYLATE PHOTOENGRAVED PHOTOENGRAVER PHOTOENGRAVES PHOTOGRAPHERS PHOTOGRAPHIES PHOTOGRAPHING PHOTOGRAPHIST PHOTOGRAVURES PHOTOREACTION PHOTOREACTIVE PHOTOREALISMS PHOTOREALISTS PHOTOTELEGRAM PHRAGMOPLASTS PHRASEOLOGIST PHREATOPHYTES PHREATOPHYTIC PHRENETICALLY PHYLACTERICAL PHYSIOLATRIES PHYSIOTHERAPY PHYTOGRAPHERS PHYTOGRAPHIES PHYTOPLANKTER PHYTOSANITARY PICTOGRAPHIES PLATYRRHINIAN PLAYWRIGHTING PLETHORICALLY PLETHYSMOGRAM PNEUMATOPHORE POLYARTHRITIS POLYCHROMATIC POLYGRAPHISTS POLYHISTORIAN POLYURETHANES POSTAPARTHEID PREADULTHOODS PREANESTHETIC PREAUTHORIZED PREAUTHORIZES PREHARVESTING PREHISTORIANS PREHISTORICAL PROCATHEDRALS PROMETHAZINES PROMONARCHIST PROPHETICALLY PROPHYLACTICS PROSENCHYMATA PROSTANTHERAS PROSTHODONTIA PROTHETICALLY PROTOCHORDATE PROTOTHERIANS PSILANTHROPIC PSYCHIATRICAL PSYCHIATRISTS PSYCHOTHERAPY PTERYLOGRAPHY PTOCHOCRACIES PYRETOTHERAPY PYRIMETHAMINE PYRITHIAMINES PYROCATECHINS PYROCATECHOLS PYROPHOSPHATE PYROSULPHATES PYROTECHNICAL QUAESTORSHIPS RADICULOPATHY RADIOPHONISTS RAMAPITHECINE RAPPROCHEMENT REFLECTOGRAPH REGISTRARSHIP REHOSPITALISE REHOSPITALIZE RELATIONSHIPS REPHOTOGRAPHS RETAINERSHIPS RETINOPATHIES RETROPHILIACS RHAMPHOTHECAE RHINOPLASTIES RHYTHMOPOEIAS RONTGENOGRAPH SAPROPHYTISMS SCINTIGRAPHIC SCLEROTHERAPY SCRATCHPLATES SECRETARYSHIP SERGEANTSHIPS SERJEANTSHIPS SEROTHERAPIES SHAPESHIFTERS SHARPSHOOTERS SHARPSHOOTING SOMATOTROPHIC SOMATOTROPHIN SOPHISTICATOR SPATTERDASHES SPECTATORSHIP SPECTROGRAPHS SPECTROGRAPHY SPELEOTHERAPY SPERMATOPHORE SPERMATOPHYTE SPERMATORRHEA SPERMATOTHECA SPHAIRISTIKES SPORTSMANSHIP STASIMORPHIES STEEPLECHASER STEGANOGRAPHS STEGANOGRAPHY STENOGRAPHERS STENOGRAPHIES STENOGRAPHING STENOGRAPHIST STEPDAUGHTERS STEREOGRAPHED STEREOGRAPHIC STRAPHANGINGS STRATIGRAPHER STRATIGRAPHIC STRATOSPHERES STRATOSPHERIC STROPHANTHINS STROPHIOLATED STYLOGRAPHIES SULPHURATIONS SUPERATHLETES SUPERHUMANITY SUPERTEACHERS SURROGATESHIP SYCOPHANTLIER SYCOPHANTRIES TACHYGRAPHERS TACHYGRAPHIES TACHYGRAPHIST TACHYPHRASIAS TAPHROGENESES TAPHROGENESIS TAUROMORPHOUS TELAUTOGRAPHY TELEGRAPHESES TELEGRAPHISTS TENORRHAPHIES TEPHROMANCIES TERATOPHOBIAS TEREPHTHALATE TERPSICHOREAL TERPSICHOREAN THANATOGRAPHY THEANTHROPIES THEANTHROPISM THEANTHROPIST THEATROPHONES THERAPEUTICAL THERAPEUTISTS THERMOGRAPHER THERMOGRAPHIC THERMOPLASTIC THERMOTHERAPY THORACOPLASTY THORACOSCOPES THOROUGHPACED THROMBOPHILIA TOPOGRAPHICAL TRACHEOPHYTES TRANSHIPMENTS TRANSHIPPINGS TRANSSHIPMENT TRANSSHIPPERS TRANSSHIPPING TRAPEZOHEDRAL TRAPEZOHEDRON TRAPSHOOTINGS TREASURERSHIP TREPHINATIONS TRICHOPTERANS TRIPHOSPHATES TRIUMPHALISMS TRIUMPHALISTS TROPHALLACTIC TROPHOBLASTIC TYPOGRAPHICAL TYPOGRAPHISTS ULTRAPHYSICAL UNPROPHETICAL URANOGRAPHIST VIBRAHARPISTS VIBRAPHONISTS WATERMANSHIPS WEATHERPERSON WEATHERPROOFS XANTHOPTERINE XANTHOPTERINS XEROPHTHALMIA XEROPHTHALMIC XIPHIPLASTRAL XIPHIPLASTRON ZINJANTHROPUS