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There are 18 twelve-letter words containing A, D, X and Y

CARBOXYLATEDcarboxylated v. Simple past tense and past participle of carboxylate.
carboxylated adj. (Chemistry) Converted into a carboxylic acid, normally by the oxidation of an alcohol or aldehyde.
CARBOXYLATE v. to introduce carboxyl or carbon dioxide into (a compound) with formation of a carboxylic acid.
DEOXYGENATEDdeoxygenated v. Simple past tense and past participle of deoxygenate.
DEOXYGENATE v. to remove esp. molecular oxygen from.
DEOXYGENATESdeoxygenates v. Third-person singular simple present indicative form of deoxygenate.
DEOXYGENATE v. to remove esp. molecular oxygen from.
DEXTROGYRATEdextrogyrate adj. Dextrorotatory.
DEXTROGYRATE adj. causing to turn to the right hand, also DEXTROGYRE.
DEXTROROTARYdextrorotary adj. Dextrorotatory.
DEXTROROTARY adj. turning to the right, esp. turning plane of polarized light, also DEXTROROTATORY.
DICARBOXYLICdicarboxylic adj. (Organic chemistry) Having two carboxylic groups.
DICARBOXYLIC adj. containing two carboxyl groups in the molecule.
HEXADACTYLIChexadactylic adj. Hexadactylous.
HEXADACTYLIC adj. having six fingers, also HEXADACTYLOUS.
HEXAHYDRATEDhexahydrated adj. Converted to a hexahydrate.
HEXAHYDRATED adj. like a hexahydrate, a chemical compound with six molecules of water.
HEXAHYDRATEShexahydrates n. Plural of hexahydrate.
HEXAHYDRATE n. a chemical compound with six molecules of water.
HYDROXYLASEShydroxylases n. Plural of hydroxylase.
HYDROXYLASE n. any of a group of enzymes that catalyze oxidation reactions.
HYDROXYLATEDhydroxylated v. Simple past tense and past participle of hydroxylate.
hydroxylated adj. (Organic chemistry) That has been modified by hydroxylation.
HYDROXYLATE v. to introduce hydroxyl into.
HYDROXYLATEShydroxylates v. Third-person singular simple present indicative form of hydroxylate.
HYDROXYLATE v. to introduce hydroxyl into.
HYDROXYUREAShydroxyureas n. Plural of hydroxyurea.
HYDROXYUREA n. a drug used to treat some forms of leukemia, melanoma, and malignant tumors.
MYXEDEMATOUSmyxedematous adj. Relating to, or exhibiting, myxedema.
MYXEDEMATOUS adj. (US) relating to myxedema, a skin disease, also MYXOEDEMATOUS.
PARADOXOLOGYparadoxology n. (Obsolete) The use of paradoxes.
PARADOXOLOGY n. the holding or maintaining of paradoxes.
PYRIDOXAMINEpyridoxamine n. (Biochemistry) A constituent of vitamin B6, essential for the metabolism of starch and amino acids.
PYRIDOXAMINE n. a crystalline amine of the vitamin B6 group.
REOXYGENATEDreoxygenated v. Simple past tense and past participle of reoxygenate.
REOXYGENATE v. to oxygenate again.
UNOXYGENATEDunoxygenated adj. Not oxygenated.
UNOXYGENATED adj. not oxygenated.

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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See this list for:

  • English Wiktionary: 133 words
  • Scrabble in French: 24 words
  • Scrabble in Spanish: 3 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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