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List of 12-letter words containing

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There are 16 twelve-letter words containing 2A, 2E, H and 2N

ANENCEPHALIAANENCEPHALIA n. congenital absence of all or part of the brain, also ANENCEPHALY.
ANENCEPHALICanencephalic adj. Of, pertaining to, or exhibiting anencephaly.
ANENCEPHALIC adj. lacking a brain.
ARSPHENAMINEarsphenamine n. (Pharmacology, organic chemistry) A phenolic amine derivative of arsenic that was used to treat syphilis…
ARSPHENAMINE n. another name for salvarsan, a compound of arsenic once used as a remedy for syphilis.
CARRAGHEENANCARRAGHEENAN n. a colloid prepared from red algae, used in food processing, pharmaceuticals, etc., also CARAGEENAN, CARRAGEENAN, CARRAGEENIN, CARRAGHEENIN.
CARRAGHEENINcarragheenin n. Alternative form of carrageenan.
CARRAGHEENIN n. a colloid prepared from red algae, used in food processing, pharmaceuticals, etc., also CARAGEENAN, CARRAGEENAN, CARRAGEENIN, CARRAGHEENAN.
ETHANOLAMINEethanolamine n. (Chemistry) a hydroxy-amine, HO.CH2.CH2.NH2, manufactured by the reaction of ethylene oxide with ammonia;…
ETHANOLAMINE n. a colorless liquid amino alcohol used esp. as a solvent in the synthesis of detergents and in gas purification.
HAPPENCHANCEhappenchance n. (Informal, originally regional) Coincidence.
happenchance adj. Characterized by happenstance; chance; fortunate or unfortunate.
HAPPENCHANCE n. a circumstance esp. that is due to chance, also HAPPENSTANCE.
HAPPENSTANCEhappenstance n. (Uncountable) The chance or random quality of an event or circumstance.
happenstance n. (Countable) A chance or random event or circumstance.
HAPPENSTANCE n. a circumstance esp. that is due to chance, also HAPPENCHANCE.
HENDECAGONALhendecagonal adj. (Geometry) Having eleven sides and angles; similar to a hendecagon.
HENDECAGONAL adj. of or like a hendecagon, an eleven-sided polygon.
NAPHTHALENESnaphthalenes n. Plural of naphthalene.
NAPHTHALENE n. a crystalline aromatic hydrocarbon usually obtained by distillation of coal tar.
NEANDERTHALSneanderthals n. Plural of neanderthal.
Neanderthals n. Plural of Neanderthal.
NEANDERTHAL n. (German) a primitive or reactionary person, also NEANDERTAL, NEANDERTALER, NEANDERTHALER.
NEURASTHENIAneurasthenia n. (Psychiatry) An ill-defined medical condition characterized by lassitude, fatigue, headache, and irritability…
NEURASTHENIA n. nervous debility or breakdown.
PANTOTHENATEpantothenate n. (Chemistry) Any salt or ester of pantothenic acid.
PANTOTHENATE n. a salt or ester of pantothenic acid.
PHAEOMELANINphaeomelanin n. Alternative spelling of pheomelanin.
PHAEOMELANIN n. a reddish-brown pigment in animals, including birds.
PHENARSAZINEPHENARSAZINE n. an arsenic derivative used as a poison gas, aka adamsite.
UNCHANGEABLEunchangeable adj. Not changeable; incapable of being changed or of changing; immutable.
unchangeable n. Something that cannot be changed.
UNCHANGEABLE adj. not changing or to be changed.

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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