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 There are 5 twelve-letter words containing OSSING| BACKCROSSING | • backcrossing n. (Genetics) The crossing of a hybrid with one of its parents or an individual genetically similar to its parent. • backcrossing v. Present participle of backcross.
 • BACKCROSS v. to create a cross between a hybrid and a parent.
 |  | BOOKCROSSING | • bookcrossing v. Present participle of bookcross. • bookcrossing n. The practice of leaving a book in a public location to be found and read by others, who then do the same.
 • BOOKCROSSING n. the practice of leaving a book in a public location to be found and read by others, who then do the same.
 |  | ENGROSSINGLY | • engrossingly adv. In an engrossing way. • ENGROSSING adv. ENGROSS, to completely absorb one's attention, also INGROSS.
 |  | OUTCROSSINGS | • outcrossings n. Plural of outcrossing. • OUTCROSSING n. the act of crossing (an animal or plant, a breed or stock) with one not closely related.
 |  | TESTCROSSING | • testcrossing v. Present participle of testcross. • TESTCROSS v. to make a testcross.
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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: 22 wordsScrabble in French: no wordScrabble in Spanish: no wordScrabble in Italian: 1 wordScrabble in German: no wordScrabble in Romanian: no word
 
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