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List of 13-letter words containing

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There are 12 thirteen-letter words containing C, H, I, O, S and 2U

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.
COUCHSURFINGSCOUCHSURFING n. the practice of sleeping overnight in the houses of friends or fellow members of a social network, esp. as an alternative to staying in hotels, hostels, etc.
COUNTINGHOUSEcountinghouse n. (Dated) An office used by a business to house its accounts department.
counting-house n. Alternative form of countinghouse.
counting␣house n. Alternative form of countinghouse.
DOLICHOSAURUSDOLICHOSAURUS n. any member of the Dolichosauria, a group of Cretaceous fossil reptiles.
EUNUCHOIDISMSeunuchoidisms n. Plural of eunuchoidism.
EUNUCHOIDISM n. a condition in which there is a deficiency of sexual development and in which certain female sex characteristics are often present.
HORTICULTUREShorticultures n. Plural of horticulture.
HORTICULTURE n. the science and art of growing fruits, vegetables, flowers, or ornamental plants.
HYPERCAUTIOUShypercautious adj. Especially or unreasonably cautious.
HYPERCAUTIOUS adj. excessively cautious.
HYPOSULPHURIChyposulphuric adj. Alternative spelling of hyposulfuric.
HYPOSULPHURIC adj. denoting a kind of acid.
ICHTHYOSAURUSichthyosaurus n. (Archaic) Alternative form of ichthyosaur.
ichthyosaurus n. Any members of the genus Ichthyosaurus.
Ichthyosaurus prop.n. A taxonomic genus within the family Ichthyosauridae – large, extinct marine reptiles.
KURCHATOVIUMSKURCHATOVIUM n. a former name for rutherfordium, an artificially produced radioactive transuranic element.
PYROSULPHURICpyrosulphuric adj. (Britain) Alternative spelling of pyrosulfuric.
PYROSULPHURIC adj. as in pyrosulphuric acid, a type of acid.
THIOSULPHURICthiosulphuric adj. (Inorganic chemistry, chiefly Britain) Alternative spelling of thiosulfuric.
THIOSULPHURIC adj. as in thiosulphuric acid, sulphuric acid in which one atom of oxygen is replaced by sulphur.

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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