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List of 12-letter words containing

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There are 18 twelve-letter words containing A, D, E, H, L, M and Y

ACHLAMYDEOUSachlamydeous adj. (Botany) having no perianth.
ACHLAMYDEOUS adj. without a perianth.
DEMETHYLATEDdemethylated v. Simple past tense and past participle of demethylate.
demethylated adj. (Chemistry) That has been subjected to demethylation.
DEMETHYLATESdemethylates v. Third-person singular simple present indicative form of demethylate.
DIETHYLAMIDEdiethylamide n. (Organic chemistry) The derivative of a compound formed by adding an amide group with two ethyl substituents…
DIETHYLAMIDE n. as in lysergic acid diethylamide, LSD.
DIETHYLAMINEdiethylamine n. (Organic chemistry) The secondary amine (CH3CH2)2NH.
DIETHYLAMINE n. a liquid resembling ethylamine, derived from ammonia, with ethyl groups replacing two hydrogen atoms.
FORMALDEHYDEformaldehyde n. (Organic chemistry) The simplest aldehyde, HCHO, a colourless gas that has many industrial applications;…
FORMALDEHYDE n. a formic aldehyde, formalin.
HEADMASTERLYheadmasterly adj. In a manner befitting a headmaster.
HEADMASTERLY adj. like a headmaster.
HEBDOMADALLYhebdomadally adv. In periods of seven days; weekly.
HEBDOMADAL adv. occurring, appearing, or done every seven days; weekly.
HEMODIALYSEShemodialyses n. Plural of hemodialysis.
HEMODIALYSIS n. dialysis, also HAEMODIALYSIS.
HEMODIALYSIShemodialysis n. (Medicine) A dialysis utilizing extracorporeal removal of waste products from the blood in the case of kidney failure.
HEMODIALYSIS n. dialysis, also HAEMODIALYSIS.
HEMODIALYZERhemodialyzer n. Something that performs hemodialysis.
HEMODIALYZER n. an artificial kidney.
HOLIDAYMAKERholidaymaker n. (Britain) someone who is on holiday.
holiday-maker n. (Britain) Someone who is on holiday.
HOLIDAYMAKER n. someone on holiday.
HYDROTHERMALhydrothermal adj. Of, or relating to hot water.
hydrothermal adj. (Geology) Of or relating to emanations of hot water that are rich in minerals, or to the rocks formed from them.
HYDROTHERMAL adj. designating naturally hot underground water that has geological effects.
MEALYMOUTHEDmealymouthed adj. Alternative form of mealy-mouthed.
mealy-mouthed adj. Prone to speaking evasively, indirectly, or duplicitously; not forthright.
MEALYMOUTHED adj. not plain and straightforward.
METALDEHYDESMETALDEHYDE n. a polymer of acetaldehyde.
METHODICALLYmethodically adv. In a methodical manner; with order.
METHODICAL adv. arranged, characterized by, or performed with method or order, also METHODIC.
SHAMEFACEDLYshamefacedly adv. In a shamefaced manner.
SHAMEFACED adv. showing modesty, also SHAMEFAST.
UNHANDSOMELYunhandsomely adv. In an unhandsome manner.
UNHANDSOME adv. not handsome.

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: 97 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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