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 There are 3 thirteen-letter words containing 2I, K, L, M, O and R| BOILERMAKINGS | • BOILERMAKING n. metalworking in heavy industry; plating or welding. |  | POIKILOTHERMS | • poikilotherms n. Plural of poikilotherm. • POIKILOTHERM n. an organism that takes on the temperature of its surroundings.
 |  | POIKILOTHERMY | • poikilothermy n. (Biology) The quality of having a body temperature that varies or fluctuates, depending on the temperature… • POIKILOTHERMY n. the state of being cold-blooded, also POIKILOTHERMISM.
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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 1Word.ws and WikWik.org.
 
 See this list for:English Wiktionary: 14 wordsScrabble in French: 8 wordsScrabble in Spanish: no wordScrabble in Italian: 2 wordsScrabble in German: no wordScrabble in Romanian: 9 words
 
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