List of 15-letter words containing ••••••

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There are 19 fifteen-letter words containing 2D, 2I, O, S and T

ADDITIONALITIES	• additionalities n. Plural of additionality. • ADDITIONALITY n. the quality of being additional.
ADENOIDECTOMIES	• adenoidectomies n. Plural of adenoidectomy. • ADENOIDECTOMY n. the surgical removal of the adenoids, also ADENECTOMY.
AUTODIDACTICISM	• autodidacticism n. Self-education; self-directed learning. • AUTODIDACTICISM n. the state of being autodidactic.
AZIDOTHYMIDINES	• azidothymidines n. Plural of azidothymidine. • AZIDOTHYMIDINE n. a derivative of thymidine.
BIODEGRADATIONS	• biodegradations n. Plural of biodegradation. • BIODEGRADATION n. the state of being biodegraded.
DEREQUISITIONED	• derequisitioned v. Simple past tense and past participle of derequisition. • DEREQUISITION v. to return (something that has been used for a military purpose) to civilian use.
DISAPPROPRIATED	• disappropriated v. Simple past tense and past participle of disappropriate. • DISAPPROPRIATE v. to take away from the condition of being appropriated.
DISCOMMENDATION	• discommendation n. (Archaic) blame; censure; reproach; shunning. • DISCOMMENDATION n. the act of discommending.
DISINCORPORATED	• disincorporated v. Simple past tense and past participle of disincorporate. • DISINCORPORATE v. to deprive of corporate rights.
DISPROPORTIONED	• disproportioned adj. Badly proportioned; disproportionate. • DISPROPORTION v. to make out of proportion.
HYDRODYNAMICIST	• hydrodynamicist n. One who studies hydrodynamics. • HYDRODYNAMICIST n. a student of hydrodynamics.
NONADDITIVITIES	• nonadditivities n. Plural of nonadditivity. • NONADDITIVITY n. the state of being nonadditive.
PERIODONTITIDES	• periodontitides n. Plural of periodontitis.
RADIOSENSITISED	• radiosensitised v. Simple past tense and past participle of radiosensitise. • RADIOSENSITISE v. to make e.g. cancer cells more radiosensitive, also RADIOSENSITIZE.
RADIOSENSITIZED	• radiosensitized v. Simple past tense and past participle of radiosensitize. • RADIOSENSITIZE v. to make e.g. cancer cells more radiosensitive, also RADIOSENSITISE.
STANDARDISATION	• standardisation n. Britain standard spelling of standardization. • STANDARDISATION n. the act of standardising, also STANDARDIZATION.
STANDARDIZATION	• standardization n. The process of complying (or evaluate by comparing) with a standard. • standardization n. The process of establishing a standard. • STANDARDIZATION n. the act of standardizing, also STANDARDISATION.
SUPERADDITIONAL	• superadditional adj. Being a superaddition; added on top of a previous addition. • SUPERADDITIONAL adj. added over and above.
TRADITIONALISED	• traditionalised v. Simple past tense and past participle of traditionalise. • TRADITIONALISE v. to make traditionalise, also TRADITIONALIZE.

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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English Wiktionary: 211 words
Scrabble in French: 45 words
Scrabble in Spanish: 65 words
Scrabble in Italian: 111 words
Scrabble in German: no word
Scrabble in Romanian: 32 words

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