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List of 13-letter words containing

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There are 20 thirteen-letter words containing A, 2O, P, 2S, T and U

APOSTROPHUSESAPOSTROPHUS n. (Greek) a symbol resembling a reversed letter C used in Roman numerals to denote large numbers.
ARTHROSPOROUSarthrosporous adj. Relating to arthrospores.
ARTHROSPOROUS adj. of or like an arthrospore, also ARTHROSPORIC.
AUTOEXPOSURESAUTOEXPOSURE n. a system for automatically adjusting the aperture and/or shutter speed of a camera according to the lighting conditions.
AUTOMORPHISMSautomorphisms n. Plural of automorphism.
AUTOMORPHISM n. ascription to others of one's own characteristics.
COAUTHORSHIPScoauthorships n. Plural of coauthorship.
COAUTHORSHIP n. the role of coauthor.
EXPOSTULATORSexpostulators n. Plural of expostulator.
EXPOSTULATOR n. one who expostulates.
GASTEROPODOUSgasteropodous adj. Obsolete form of gastropodous.
GASTEROPODOUS adj. like a gasteropod.
OSTREOPHAGOUSostreophagous adj. Oyster-eating.
OSTREOPHAGOUS adj. oyster-eating.
OUTPASSIONINGoutpassioning v. Present participle of outpassion.
OUTPASSION v. to exceed in passion.
PLAGIOSTOMOUSplagiostomous adj. (Zoology) Of or pertaining to the Plagiostomi.
PLAGIOSTOMOUS adj. of or like a plagiostome, also PLAGIOSTOMATOUS.
POSTHOLOCAUSTpostholocaust adj. After the Holocaust.
POSTHOLOCAUST adj. following the Holocaust.
POSTMENOPAUSEpostmenopause n. The period in which menopause no longer occurs; often defined as the first full year in which no menstruation occurs.
PROCONSULATESproconsulates n. Plural of proconsulate.
PROCONSULATE n. the office of proconsul.
SOMATOPLEURESsomatopleures n. Plural of somatopleure.
SOMATOPLEURE n. a cellular sheet in some vertebrates that develops into the internal body wall.
SOUSAPHONISTSsousaphonists n. Plural of sousaphonist.
SOUSAPHONIST n. one who plays the sousaphone.
SPONTANEOUSLYspontaneously adv. In a spontaneous manner; naturally; voluntarily.
SPONTANEOUS adv. acting by its own impulse or natural law.
STEGANOPODOUSsteganopodous adj. (Zoology) Having all four toes webbed together.
STEGANOPODOUS adj. relating to the Steganopodes, an order of birds including pelicans.
STENOPETALOUSstenopetalous adj. (Botany) Having narrow petals.
STENOPETALOUS adj. having narrow petals.
SULPHONATIONSsulphonations n. Plural of sulphonation.
SULPHONATION n. the act of sulphonating.
SUPPOSITIONALsuppositional adj. Relating to, or based on, supposition; hypothetical; conjectural.
SUPPOSITIONAL adj. having the nature of a supposition.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 98 words
  • Scrabble in French: 28 words
  • Scrabble in Spanish: 15 words
  • Scrabble in Italian: 17 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 15 words


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