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There are 17 twelve-letter words containing C, H, L, M, O, P, R and Y

CEPHALOMETRYcephalometry n. The measurement of the head, especially in order to study growth, development, and disease.
CEPHALOMETRY n. the science of measuring the head in living individuals.
CHLOROPHYTUMCHLOROPHYTUM n. any plant of the genus Chlorophytum, grown as pot plants for their long narrow leaves.
HYPERCOMPLEXhypercomplex adj. (Mathematics) Describing any of several types of higher-dimensional numbers having some characteristics…
hypercomplex n. (Mathematics) A hypercomplex number.
HYPERCOMPLEX adj. excessively complex.
LAMPROPHYRIClamprophyric adj. Of or relating to lamprophyre.
LAMPROPHYRIC adj. of or like lamprophyre, a kind of basic igneous rock.
MACROCEPHALYmacrocephaly n. (Medicine) A condition in which the head is abnormally large.
macrocephaly n. (Geography) The excessive concentration of population and development in a single centre, to the detriment…
MACROCEPHALY n. largeness, or abnormal largeness, of the head.
MICROCEPHALYmicrocephaly n. A neurological disorder in which the person affected has an abnormally small head due to a failure of brain growth.
MICROCEPHALY n. the state of having a small head.
MYOGRAPHICALmyographical adj. Of or relating to myography.
MYOGRAPHICAL adj. relating to myography, the description of muscles, also MYOGRAPHIC.
MYRMECOPHILEmyrmecophile n. An organism, especially an insect, that lives in close association with or shares a nest with a species of ant.
MYRMECOPHILE n. an organism that shares an ant colony.
MYRMECOPHILYmyrmecophily n. The condition of being myrmecophilous.
MYRMECOPHILY n. a symbiotic relation with ants.
PHARMACOLOGYpharmacology n. (Medicine) The science of drugs including their origin, composition, pharmacokinetics, therapeutic use…
pharmacology n. (Medicine) The properties and reactions of drugs especially with relation to their therapeutic value.
PHARMACOLOGY n. the study of drugs.
POLYCHROISMSPOLYCHROISM n. the state of being polychroic.
POLYCHROMIESpolychromies n. Plural of polychromy.
POLYCHROMY n. the art or practice of combining different colors, esp. brilliant ones, in an artistic way.
POLYCHROMINGpolychroming v. Present participle of polychrome.
POLYCHROME v. to colour in many colours.
POLYCHROMOUSpolychromous adj. Of or pertaining to polychromy; many-colored; polychromatic.
POLYCHROMOUS adj. many-coloured, also POLYCHROME, POLYCHROMIC.
POLYPHARMACYpolypharmacy n. (Medicine) The use of multiple drugs to treat multiple concurrent disorders in the same (now especially…
POLYPHARMACY n. treatment with many medicines for same disease.
POLYRHYTHMICpolyrhythmic adj. (Music) Having multiple, simultaneous rhythms.
POLYRHYTHMIC adj. relating to polyrhythm.
PYROCHEMICALpyrochemical adj. (Chemistry) Of, related to, or produced by chemical reactions at elevated temperatures.
PYROCHEMICAL adj. relating to chemical changes at high temperatures.

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: 41 words
  • Scrabble in French: 4 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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