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List of 12-letter words containing

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There are 14 twelve-letter words containing 3O, P, R, S and Y

BRONCHOSCOPYbronchoscopy n. (Medicine) A technique for viewing the bronchi using a flexible instrument called a bronchoscope.
BRONCHOSCOPY n. examination of the bronchi.
HOMOPOLYMERShomopolymers n. Plural of homopolymer.
HOMOPOLYMER n. a DNA or RNA strand whose nucleotides are all of the same kind.
HYDROPHOBOUShydrophobous adj. Hydrophobic.
HYDROPHOBOUS adj. (obsolete) water-repellent.
HYPOCHLOROUShypochlorous adj. (Chemistry) Pertaining to or derived from chlorine having a valence lower than in chlorous compounds.
HYPOCHLOROUS adj. of or derived from hypochlorous acid.
LYOSORPTIONSLYOSORPTION n. the adsorption of a liquid on a solid surface, esp. of a solvent on suspended particles.
ORNITHOSCOPYornithoscopy n. Birdwatching.
ORNITHOSCOPY n. bird watching.
POLYCHROMOUSpolychromous adj. Of or pertaining to polychromy; many-colored; polychromatic.
POLYCHROMOUS adj. many-coloured, also POLYCHROME, POLYCHROMIC.
POLYMORPHOUSpolymorphous adj. Having, or assuming, a variety of forms, characters, or styles.
polymorphous adj. (Biology) Having, or occurring in, several distinct forms.
polymorphous adj. (Chemistry) Crystallizing in two or more different forms; polymorphic.
POLYRIBOSOMEpolyribosome n. (Biochemistry) A cluster of ribosomes, connected by mRNA, that collectively synthesizes protein.
POLYRIBOSOME n. a cluster of ribosomes linked together by a molecule of messenger RNA and forming the site of protein synthesis.
POSTCORONARYpostcoronary adj. After coronary thrombosis.
POSTCORONARY adj. taking place after a coronary.
PROTISTOLOGYprotistology n. (Biology) The scientific study of protists.
PROTISTOLOGY n. the study of protists.
PROTOHISTORYprotohistory n. The period between prehistory and history, during which a culture or civilization has not yet developed…
PROTOHISTORY n. the study of human beings in the times that immediately antedate recorded history.
TROPOMYOSINStropomyosins n. Plural of tropomyosin.
TROPOMYOSIN n. a filamentous protein which controls the interaction of actin and myosin in muscle fibres.
ZYGOMORPHOUSzygomorphous adj. Zygomorphic.
ZYGOMORPHOUS adj. bilaterally symmetrical, also ZYGOMORPHIC.

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: 61 words
  • Scrabble in French: 5 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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