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There are 19 twelve-letter words containing A, 2C, I, 2O and 2S

ACROCYANOSISacrocyanosis n. (Pathology) A persistent blue or cyanotic discoloration of the digits, most commonly occurring in the…
ACROCYANOSIS n. persistent cyanosis of the hands and feet due to poor circulation of the blood.
BIOACOUSTICSbioacoustics n. A cross-disciplinary science that combines biology and acoustics, investigating for instance the mechanisms…
BIOACOUSTICS n. a branch of science concerned with the production of sound by and its effects on living organisms.
CATHOLICOSEScatholicoses n. Plural of catholicos.
CATHOLICOS n. (Greek) the Primate of the Armenian or Nestorian church.
CHIAROSCUROSchiaroscuros n. Plural of chiaroscuro.
CHIAROSCURO n. (Italian) the quality of being veiled or partly in shadow.
CONCESSIONALconcessional adj. Of, relating to, or being a concession; concessionary.
CONCESSIONAL adj. in the nature of a concession.
CONFISCATORSconfiscators n. Plural of confiscator.
CONFISCATOR n. one who confiscates.
CONSONANCIESconsonancies n. Plural of consonancy.
CONSONANCY n. a state of accord or agreement, also CONSONANCE.
CORUSCATIONScoruscations n. Plural of coruscation.
CORUSCATION n. glitter, sparkle.
COSMONAUTICScosmonautics n. The activities of cosmonauts; Soviet/Russian astronautics.
COSMONAUTICS n. Russian astronautics.
COSMOPLASTICcosmoplastic adj. Pertaining to or concerned with the formation of the universe or world; cosmogonic.
cosmoplastic adj. Pertaining to a plastic force as operative in the formation of the world independently of God; world-forming.
COSMOPLASTIC adj. moulding or shaping the universe.
GASTROSCOPICgastroscopic adj. Of or pertaining to gastroscopy.
GASTROSCOPIC adj. relating to the gastroscope, an instrument for examining interior of the stomach.
MACROCYTOSISmacrocytosis n. The presence of macrocytes in the blood.
MACROCYTOSIS n. the occurrence of macrocytes in the blood.
OCTASTICHONSOCTASTICHON n. a poem or stanza of eight lines, also OCTASTICH.
OCTASTICHOUSoctastichous adj. (Botany) Having a phyllotaxis of eight leaves in each spiral around a stem.
OCTASTICHOUS adj. in eight rows, also OCTOSTICHOUS.
OSTEOCLASTICosteoclastic adj. (Pathology) Of or pertaining to an osteoclast.
osteoclastic adj. (Surgery) Of or pertaining to osteoclasis.
OSTEOCLASTIC adj. of or like an osteoclast, an instrument used to break bones.
PSYCHOSOCIALpsychosocial adj. (Of behaviour) Having both psychological and social aspects.
PSYCHOSOCIAL adj. involving both psychological and social aspects.
SNOBOCRACIESsnobocracies n. Plural of snobocracy.
SNOBOCRACY n. government by snobs.
STAUROSCOPICstauroscopic adj. Relating to the stauroscope.
STAUROSCOPIC adj. of or like a stauroscope, an instrument for studying the structure of crystals with polarised light.
TOBACCONISTStobacconists n. Plural of tobacconist.
tobacconist's n. A shop that sells tobacco products.
tobacconists' n. Plural of tobacconist’s.

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: 62 words
  • Scrabble in French: 30 words
  • Scrabble in Spanish: 71 words
  • Scrabble in Italian: 215 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 21 words


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