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 There are 7 thirteen-letter words containing A, 2G, 2I, 2O and R| AGROBIOLOGIES | • AGROBIOLOGY n. the study of plant nutrition and soil yields. |  | AGROBIOLOGIST | • agrobiologist n. One who studies bacteria and other organisms in soil for the purpose of growing crops or feeding animals. • agrobiologist n. One who studies the nutrition or breeding of animals or crops.
 • AGROBIOLOGIST n. one who studies plant nutrition and soil yields.
 |  | BIOGEOGRAPHIC | • biogeographic adj. Of or pertaining to biogeography, the study of the geographical arrangement of plants and animals. • BIOGEOGRAPHIC adj. relating to biogeography, also BIOGEOGRAPHICAL.
 |  | GRAMINOLOGIES | • GRAMINOLOGY n. the study of grasses. |  | OPPIGNORATING | • oppignorating v. Present participle of oppignorate. • OPPIGNORATE v. (obsolete) to pawn, also OPPIGNERATE.
 |  | OUTORGANISING | • OUTORGANISE v. to surpass at organisation, also OUTORGANIZE. |  | OUTORGANIZING | • outorganizing v. Present participle of outorganize. • OUTORGANIZE v. to surpass in organization, also OUTORGANISE.
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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: 16 wordsScrabble in French: 3 wordsScrabble in Spanish: 17 wordsScrabble in Italian: 220 wordsScrabble in German: no wordScrabble in Romanian: 48 words
 
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