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 There are 12 thirteen-letter words containing G, 2I, N, 3O and T| ACTINOBIOLOGY | • actinobiology n. The study of the effects of radiation upon living organisms. • ACTINOBIOLOGY n. the branch of biology concerned with the effects of radiation on living organisms.
 |  | COGNOMINATION | • cognomination n. A cognomen, surname. • COGNOMINATION n. the act of cognominating, naming.
 |  | NONBIOLOGISTS | • nonbiologists n. Plural of nonbiologist. • NONBIOLOGIST n. one who is not a biologist.
 |  | OPPIGNORATION | • oppignoration n. (Obsolete) The act of pawning or laying in pledge. • OPPIGNORATION n. the act of pawning, also OPPIGNERATION.
 |  | ORNITHOLOGIES | • ornithologies n. Plural of ornithology. • ORNITHOLOGY n. the study of birds.
 |  | ORNITHOLOGIST | • ornithologist n. A person who studies or practices ornithology. • ORNITHOLOGIST n. one who studies birds.
 |  | PHOTOIONISING | • PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE. |  | PHOTOIONIZING | • photoionizing adj. That causes or undergoes photoionization. • PHOTOIONIZE v. to ionize by electromagnetic radiation, also PHOTOIONISE.
 |  | PROPORTIONING | • proportioning v. Present participle of proportion. • PROPORTIONING n. an adjustment of proportions.
 |  | PROTOCOLISING | • protocolising v. Present participle of protocolise. • PROTOCOLISE v. to make a protocol of, also PROTOCOLIZE.
 |  | PROTOCOLIZING | • protocolizing v. Present participle of protocolize. • PROTOCOLIZE v. to make a protocol of, also PROTOCOLISE.
 |  | SINDONOLOGIST | • sindonologist n. One who studies the Shroud of Turin from a believing perspective. • SINDONOLOGIST n. an expert on the Turin shroud.
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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: 69 wordsScrabble in French: 4 wordsScrabble in Spanish: 5 wordsScrabble in Italian: 37 wordsScrabble in German: no wordScrabble in Romanian: 69 words
 
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