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There are 16 twelve-letter words containing C, E, 2H, M, O, R and T

BATHOCHROMESBATHOCHROME n. a shift to a longer wavelength in the absorption spectrum of a compound.
CHEMOAUTROPHCHEMOAUTROPH n. any organism, e.g. bacteria, that produces energy by the oxidation of inorganic compounds, such as iron, ammonia and hydrogen sulphide, also CHEMOAUTOTROPH.
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.
CHRESTOMATHYchrestomathy n. A collection of written passages, used to learn an unfamiliar language.
chrestomathy n. A collection of choice passages from an author or authors.
CHRESTOMATHY n. a selection of passages compiled as an aid to learning a language; a volume of selected passages or stories of an author.
HAMMERCLOTHShammercloths n. Plural of hammercloth.
hammer-cloths n. Plural of hammer-cloth.
HAMMERCLOTH n. a cloth covering a coach box.
HEMICHORDATEhemichordate n. (Biology) Any of many marine worms, of the phylum Hemichordata, that have a primitive notochord.
hemichordate adj. Of, pertaining to, or characteristic of these animals.
HEMICHORDATE n. a kind of marine worm.
HOMEOTHERMIChomeothermic adj. (Zoology) Capable of maintaining a relatively constant body temperature independent of the surrounding environment.
HOMEOTHERMIC adj. keeping the same temperature, warm-blooded, also HOMOIOTHERMIC.
HOMESCREETCHHOMESCREETCH n. the mistle thrush.
METHOXYCHLORmethoxychlor n. (Organic chemistry) A synthetic organochlorine used as an insecticide.
METHOXYCHLOR n. a relatively nontoxic organochlorine insecticide.
NYCHTHEMERONnychthemeron n. A period of one day and one night, a date: in the West, this is a period of 24 consecutive hours.
NYCHTHEMERON n. (Greek) a full period of a day and night.
PHOTOTHERMICphotothermic adj. Relating to both light and heat.
PHOTOTHERMIC adj. of or concerned with light and heat, esp. the production of heat by light, also PHOTOTHERMAL.
PHYTOCHROMESphytochromes n. Plural of phytochrome.
PHYTOCHROME n. a plant pigment which absorbs red or infrared rays and acts as an enzyme controlling growth.
RHAMPHOTHECArhamphotheca n. A thin horny sheath of keratin on the outer surface of a bird’s beak.
RHAMPHOTHECA n. the horny or leathery outer layer of a bird's bill.
THERMOCHROMYthermochromy n. The property possessed by heat of being composed, like light, of rays of different degrees of refrangibility…
THERMOCHROMY n. a phenomenon in which certain dyes made from liquid crystals change colour reversibly when their temperature is change, also THERMOCHROMISM.
THERMOPHILICthermophilic adj. (Biology) of, or relating to a thermophile; living and thriving at relatively high temperatures.
THERMOPHILIC adj. of plants etc. requiring or thriving in high temperatures, also THERMOPHIL, THERMOPHILE, THERMOPHILOUS.
TROCHELMINTHtrochelminth n. (Zoology, obsolete) Any member of the Trochelminthes.
TROCHELMINTH n. any invertebrate of the former taxonomic group Trochelminthes, which included the rotifers and gastrotrichs.

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: 65 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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