List of 15-letter words containing

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There are 18 fifteen-letter words containing IOS

BIOSTATISTICIAN	• biostatistician n. Person making or doing research on biostatistics. • BIOSTATISTICIAN n. one who studies biostatistics.
BIOSTRATIGRAPHY	• biostratigraphy n. (Biology, geology) The study of the stratigraphic distribution of fossils. • BIOSTRATIGRAPHY n. the determination of age, etc., of sedimentary strata from fossils which they contain.
BIOSYSTEMATISTS	• biosystematists n. Plural of biosystematist. • BIOSYSTEMATIST n. one who studies biosystematics.
BRACHIOSAURUSES	• brachiosauruses n. Plural of brachiosaurus. • BRACHIOSAURUS n. any member of a genus of huge lizard-hipped plant-eating dinosaurs.
EBULLIOSCOPICAL	• ebullioscopical adj. Alternative form of ebullioscopic. • EBULLIOSCOPICAL adj. relating to an ebullioscope, an instrument for measuring the boiling point of liquids, also EBULLIOSCOPIC.
ENDORADIOSONDES	• endoradiosondes n. Plural of endoradiosonde. • ENDORADIOSONDE n. a miniature battery-powered transmitter designed to be swallowed by the patient to send out information about a bodily function such as digestion.
GRANDIOSENESSES	• GRANDIOSENESS n. GRANDIOSE, imposing; bombastic.
HELIOSCIOPHYTES	• HELIOSCIOPHYTE n. a plant that thrives in sun better than shade.
IDIOSYNCRATICAL	• idiosyncratical adj. Alternative form of idiosyncratic. • IDIOSYNCRATICAL adj. showing idiosyncrasy, also IDIOSYNCRATIC.
IMPECUNIOSITIES	• impecuniosities n. Plural of impecuniosity. • IMPECUNIOSITY n. poverty.
PLAGIOSTOMATOUS	• plagiostomatous adj. (Zoology) Alternative form of plagiostomous. • PLAGIOSTOMATOUS adj. of or like a plagiostome, also PLAGIOSTOMOUS.
RADIOSCOPICALLY	• radioscopically adv. By means of radioscopy. • RADIOSCOPIC adv. related to radioscopy, the examination of opaque bodies by X-rays.
RADIOSENSITISED	• radiosensitised v. Simple past tense and past participle of radiosensitise. • RADIOSENSITISE v. to make e.g. cancer cells more radiosensitive, also RADIOSENSITIZE.
RADIOSENSITISES	• radiosensitises v. Third-person singular simple present indicative form 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.
RADIOSENSITIZES	• radiosensitizes v. Third-person singular simple present indicative form of radiosensitize. • RADIOSENSITIZE v. to make e.g. cancer cells more radiosensitive, also RADIOSENSITISE.
RADIOSTRONTIUMS	• radiostrontiums n. Plural of radiostrontium. • RADIOSTRONTIUM n. a radioactive isotope of strontium, esp. strontium-90.
SPORANGIOSPORES	• sporangiospores n. Plural of sporangiospore. • SPORANGIOSPORE n. a spore developed in a sporangium.

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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English Wiktionary: 170 words
Scrabble in French: 18 words
Scrabble in Spanish: 71 words
Scrabble in Italian: 78 words
Scrabble in German: no word
Scrabble in Romanian: 106 words

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