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There are 18 twelve-letter words containing A, C, H, M, O, P, T and Y

ACTINOMORPHYactinomorphy n. The condition of being actinomorphic.
ACTINOMORPHY n. the quality of being actinomorphic.
AMPHICTYONICamphictyonic adj. (Ancient Greece) Of or relating to the amphictyons or their League or Council.
AMPHICTYONIC adj. applied to the ancient Greek council of state-deputies.
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.
CHEMOTHERAPYchemotherapy n. (Medicine) Any chemical treatment intended to be therapeutic with respect to a disease state.
chemotherapy n. (Oncology, most common usage) chemical treatment to kill or halt the replication and/or spread of cancerous…
CHEMOTHERAPY n. therapy involving the use of chemicals.
COMETOGRAPHYcometography n. A scientific description of comets.
COMETOGRAPHY n. the description of comets.
CRYMOTHERAPYCRYMOTHERAPY n. medical treatment using extreme cold, also CRYOTHERAPY.
GAMETOPHYTICgametophytic adj. (Botany) Of or pertaining to a gametophyte plant.
gametophytic adj. (Botany) Having the characteristics of a sporophyte.
GAMETOPHYTIC adj. of or like a gametophyte.
HOMEOTYPICALhomeotypical adj. (Biology) Of or resembling the usual type.
HOMEOTYPICAL adj. denoting or relating to the second nuclear division of meiosis, which resembles mitosis, also HOMOEOTYPICAL.
HYPONATREMIChyponatremic adj. (Biology, medicine) Exhibiting or relating to hyponatremia.
HYPOTHALAMIChypothalamic adj. (Anatomy) Of or pertaining to the hypothalamus.
HYPOTHALAMIC adj. of or relating to the hypothalamus.
MYCOPHAGISTSmycophagists n. Plural of mycophagist.
MYCOPHAGIST n. an eater of mushrooms.
PHAGOCYTISMSPHAGOCYTISM n. the nature or function of a phagocyte.
PHOTODYNAMICphotodynamic adj. Of, relating to, or caused by the energy or momentum of light or other electromagnetic radiations.
photodynamic adj. Of, or relating to photodynamics.
PHOTODYNAMIC adj. of, relating to, or having the property of intensifying or inducing a toxic reaction to light (as in the destruction of cancer cells stained with a light-sensitive dye) in a living system.
POLYCYTHEMIApolycythemia n. (Pathology) A rare disorder in which the bone marrow produces an abnormally large amount of blood cells…
POLYCYTHEMIA n. a condition marked by an abnormal increase in the number of circulating red blood cells, also POLYCYTHAEMIA.
PSAMMOPHYTICPSAMMOPHYTIC adj. like a psammophyte, a plant adapted to growing in sand.
SCYPHISTOMAEscyphistomae n. Plural of scyphistoma.
SCYPHISTOMA n. the fixed polypoid stage in the life cycle of a scyphozoan, which reproduces asexually by budding or strobilation.
SCYPHISTOMASscyphistomas n. Plural of scyphistoma.
SCYPHISTOMA n. the fixed polypoid stage in the life cycle of a scyphozoan, which reproduces asexually by budding or strobilation.
SYCOPHANTISMsycophantism n. Sycophantic behaviour.
SYCOPHANTISM n. sycophancy.

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: 59 words
  • Scrabble in French: 2 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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