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List of 13-letter words containing

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There are 17 thirteen-letter words containing 2A, I, O, S and 2U

ACCUMULATIONSaccumulations n. Plural of accumulation.
ACCUMULATION n. something that has accumulated.
ARUNDINACEOUSarundinaceous adj. (Botany) Of, pertaining to, or resembling a reed or cane.
ARUNDINACEOUS adj. like a reed.
AUDACIOUSNESSaudaciousness n. Risky or daring behaviour.
audaciousness n. Impudence.
AUDACIOUSNESS n. the state of being audacious.
AUDIOVISUALLYaudiovisually adv. In an audiovisual way; through sound and image.
AUDIOVISUAL adv. relating to hearing and sight.
AUSCULTATIONSauscultations n. Plural of auscultation.
AUSCULTATION n. the act of listening, esp. the act of listening for sounds made by internal organs, as the heart and lungs, to aid in the diagnosis of certain disorders.
BRACHIOSAURUSbrachiosaurus n. A large herbivorous sauropod dinosaur, Brachiosaurus altithorax, which lived during the Jurassic period.
Brachiosaurus prop.n. A taxonomic genus within the family Brachiosauridae – brachiosauruses.
BRACHIOSAURUS n. any member of a genus of huge lizard-hipped plant-eating dinosaurs.
INAUGURATIONSinaugurations n. Plural of inauguration.
INAUGURATION n. an act of inaugurating.
MUTUALISATIONmutualisation n. Alternative spelling of mutualization.
MUTUALISATION n. the process of mutualising, also MUTUALIZATION.
POSTINAUGURALpostinaugural adj. After inauguration.
POSTINAUGURAL adj. taking place after inauguration.
QUADRIFARIOUSquadrifarious adj. (Botany) Arranged in four rows or ranks.
QUADRIFARIOUS adj. arranged in four close-set rows along the stem.
SIMARUBACEOUSsimarubaceous adj. (Botany) Belonging to the family Simaroubaceae of tropical and subtropical trees.
SIMARUBACEOUS adj. belonging to the Simarubaceae, a family of tropical trees related to the Rutaceae, also SIMAROUBACEOUS.
SUBARCUATIONSSUBARCUATION n. the state of being subarcuate, somewhat arched.
SUBEQUATORIALsubequatorial adj. (Geography) Belonging to a region adjacent to an equatorial area.
SUBEQUATORIAL adj. below the equator.
SUBSATURATIONsubsaturation n. The condition of being subsaturated.
SUBSATURATION n. a state of incomplete saturation.
SUOVETAURILIAsuovetaurilia n. A religious rite of Ancient Rome, the triple sacrifice of a pig, a ram, and a bull to the deity Mars…
SUOVETAURILIA n. (Latin) a Roman sacrifice of a sheep, pig or ox.
ULTRACAUTIOUSultracautious adj. Extremely cautious.
ULTRACAUTIOUS adj. extremely cautious.
UNSATURATIONSunsaturations n. Plural of unsaturation.
UNSATURATION n. absence of saturation.

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 WikWik.org and 1Word.ws.

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