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 There are 9 twelve-letter words containing A, E, F, P, T and V| FLAVOPROTEIN | • flavoprotein n. (Biochemistry) any of a group of enzymes, containing flavin, that act as dehydrogenases. • FLAVOPROTEIN n. a protein which serves as an electron carrier in the electron transfer chain.
 |  | PARVIFOLIATE | • PARVIFOLIATE adj. of plants, having small leaves in comparison with the size of the stem. |  | PERFORMATIVE | • performative adj. (Philosophy, linguistics) Being enacted as it is said. • performative adj. Being done as a performance in order to create an impression.
 • performative n. A performative utterance.
 |  | PETRIFACTIVE | • petrifactive adj. Having the quality of converting organic matter into stone; petrifying. • petrifactive adj. Pertaining to, or characterized by, petrifaction.
 • PETRIFACTIVE adj. petrifying, also PETRIFIC.
 |  | PREFORMATIVE | • preformative n. Chiefly in Semitic languages: a formative letter, syllable, etc., at the beginning of a word. • preformative adj. Of or pertaining to preformation.
 • preformative adj. Of a thing: forming or affecting something that comes later.
 |  | PURIFICATIVE | • purificative adj. Having power to purify or cleanse. • PURIFICATIVE adj. serving to purify, also PURIFICATORY.
 |  | PUTREFACTIVE | • putrefactive adj. Of, pertaining to, or causing putrefaction. • PUTREFACTIVE adj. relating to putrefaction.
 |  | STUPEFACTIVE | • stupefactive adj. Inducing stupor; making drowsy; stupefacient. • STUPEFACTIVE adj. causing stupefaction.
 |  | TRYPAFLAVINE | • trypaflavine n. An acridine dye thought to be identical with flavine or acriflavine. • TRYPAFLAVINE n. another name for acriflavine.
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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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