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There are 19 twelve-letter words containing D, 2E, H, L, T and Y

ACETALDEHYDEacetaldehyde n. (Organic chemistry) An organic compound, (CH3CHO). Sometimes called ethanal or acetic aldehyde. See…
ACETALDEHYDE n. a chemical compound.
BIGHEARTEDLYbigheartedly adv. In a bighearted manner.
big-heartedly adv. Alternative form of bigheartedly.
BIGHEARTED adv. generous, charitable.
BREATHALYSEDbreathalysed v. Simple past tense and past participle of breathalyse, an alternative spelling of breathalyze.
BREATHALYSE v. to use a device which measures the amount of alcohol on a person's breath, also BREATHALYZE.
BREATHALYZEDbreathalyzed v. Simple past tense and past participle of breathalyze.
BREATHALYZE v. to use a device which measures the amount of alcohol on a person's breath, also BREATHALYSE.
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.
DYOTHELETISMDYOTHELETISM n. the doctrine that Christ on earth had two wills, human and divine.
HEADMASTERLYheadmasterly adj. In a manner befitting a headmaster.
HEADMASTERLY adj. like a headmaster.
HEREDITARILYhereditarily adv. In a hereditary manner.
hereditarily adv. With regard to inheritance.
HEREDITARY adv. genetically transmitted or transmittable from parent to offspring.
HETERODACTYLheterodactyl adj. (Zoology) heterodactylous.
HETERODACTYL n. a heterodactylous bird.
HETEROPLOIDYheteroploidy n. (Genetics) The state of being heteroploid.
HETEROPLOIDY n. the state of being heteroploid.
HETEROSTYLEDheterostyled adj. (Botany) Having styles of two or more distinct forms or lengths.
HETEROSTYLED adj. having styles of different length in different flowers, also HETEROSTYLOUS.
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.
REHYDRATABLErehydratable adj. Capable of being rehydrated.
REHYDRATABLE adj. capable of being rehydrated.
SOFTHEADEDLYsoftheadedly adv. In a softheaded manner.
SOFTHEADED adv. having or indicative of a weak, unrealistic, or uncritical mind.
SYNADELPHITEsynadelphite n. (Mineralogy) An orthorhombic-dipyramidal mineral containing arsenic, calcium, hydrogen, lead, magnesium…
SYNADELPHITE n. a manganese aluminium arsenate.

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: 98 words
  • Scrabble in French: 3 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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