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 There are 14 twelve-letter words containing A, H, I, O, 2R, S and U| ARCHESPORIUM | • archesporium n. (Botany) Any of the cells of the sporangium that give rise to spores. • ARCHESPORIUM n. a primitive cell or group of cells from which a mother cell develops.
 |  | ARCHOSAURIAN | • archosaurian n. An archosaur. • ARCHOSAURIAN n. any of a subclass of reptiles comprising pterosaurs, dinosaurs and crocodilians, also ARCHOSAUR.
 |  | BRACHIOSAURS | • brachiosaurs n. Plural of brachiosaur. |  | CHIAROSCUROS | • chiaroscuros n. Plural of chiaroscuro. • CHIAROSCURO n. (Italian) the quality of being veiled or partly in shadow.
 |  | CURATORSHIPS | • curatorships n. Plural of curatorship. • CURATORSHIP n. the office of curator.
 |  | HARBOURSIDES | • harboursides n. Plural of harbourside. • HARBOURSIDE n. the land that is situated next to a harbour, also HARBORSIDE.
 |  | ORNITHOSAURS | • ORNITHOSAUR n. a pterodactyl. |  | PYRRHULOXIAS | • pyrrhuloxias n. Plural of pyrrhuloxia. • PYRRHULOXIA n. a grey-and-pink crested bunting of Central and SW North America, with a short parrot-like bill.
 |  | REAUTHORISED | • reauthorised v. Simple past tense and past participle of reauthorise. • REAUTHORISE v. to authorise again, also REAUTHORIZE.
 |  | REAUTHORISES | • reauthorises v. Third-person singular simple present indicative form of reauthorise. • REAUTHORISE v. to authorise again, also REAUTHORIZE.
 |  | REAUTHORIZES | • reauthorizes v. Third-person singular simple present indicative form of reauthorize. • REAUTHORIZE v. to authorize again, also REAUTHORISE.
 |  | RHIZOCARPOUS | • rhizocarpous adj. (Botany) Having perennial rootstocks or bulbs, but annual flowering stems; said of all perennial herbs. • RHIZOCARPOUS adj. of or like a rhizocarp, also RHIZOCARPIC.
 |  | SCROPHULARIA | • Scrophularia prop.n. A taxonomic genus within the family Scrophulariaceae – the figworts, native principally to Asia. • SCROPHULARIA n. a plant of the figwort genus.
 |  | SUBARRHATION | • subarrhation n. (Historical) The ancient custom of betrothal by gift of pledges. • SUBARRHATION n. an ancient form of betrothal in which pledges of money, rings, etc. were given by the man to the woman, also SUBARRATION.
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 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.
 
 See this list for:English Wiktionary: 51 wordsScrabble in French: 19 wordsScrabble in Spanish: 17 wordsScrabble in Italian: 10 wordsScrabble in German: no wordScrabble in Romanian: 27 words
 
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