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 There are 11 twelve-letter words containing I, O, P, 3R and S| ARTHROSPORIC | • arthrosporic adj. Relating to arthrospores. • ARTHROSPORIC adj. of or like an arthrospore, also ARTHROSPOROUS.
 |  | INTERRUPTORS | • interruptors n. Plural of interruptor. • INTERRUPTOR n. one who interrupts, also INTERRUPTER.
 |  | MISREPORTERS | • misreporters n. Plural of misreporter. • MISREPORTER n. one who misreports.
 |  | PERSPIRATORY | • perspiratory adj. (Dated) Of or pertaining to perspiration. • PERSPIRATORY adj. of, relating to, secreting, or inducing perspiration.
 |  | PORTRAITURES | • portraitures n. Plural of portraiture. • PORTRAITURE n. the making of portraits.
 |  | PROPRIETRESS | • proprietress n. A female proprietor. • PROPRIETRESS n. a woman who is a proprietor, also PROPRIETRIX.
 |  | RECORDERSHIP | • recordership n. The role or office of a recorder. • RECORDERSHIP n. the office of recorder.
 |  | REPATRIATORS | • repatriators n. Plural of repatriator. • REPATRIATOR n. one who repatriates.
 |  | RESPIROMETER | • respirometer n. A device used to measure the rate of respiration of living organisms, such as plants or fish. • respirometer n. An apparatus for supplying air to a diver under water.
 • RESPIROMETER n. an instrument for measuring and studying respiration.
 |  | RESPIROMETRY | • respirometry n. A form of calorimetry that is used to measure the metabolic rate. • RESPIROMETRY n. measurement by respirometer.
 |  | SPORTSWRITER | • sportswriter n. Alternative form of sports writer (journalist who specializes in sports). • sports␣writer n. Someone who writes about sports-related topics professionally.
 • SPORTSWRITER n. a person who writes about sports esp. for a newspaper.
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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.
 
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