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There are 10 twelve-letter words containing M, 3O, R, S and 2T

MOTORBOATERSmotorboaters n. Plural of motorboater.
MOTORBOATER n. one who drives a motorboat.
MOTORISATIONmotorisation n. Alternative spelling of motorization.
MOTORISATION n. the act of motorising, also MOTORIZATION.
ORTHOTROPISMorthotropism n. The property of being orthotropic or orthotropous.
ORTHOTROPISM n. vertical growth.
OVARIOTOMISTovariotomist n. (Surgery, now historical) Someone who performs a ovariotomy.
OVARIOTOMIST n. one who carries out ovariotomies.
PHOTOTROPISMphototropism n. (Biology) The movement of a plant towards or away from light.
PHOTOTROPISM n. movement directed by light.
SOMATOTROPICsomatotropic adj. (Physiology) That stimulates body growth.
SOMATOTROPIC adj. promoting bodily growth, also SOMATOTROPHIC.
SOMATOTROPINsomatotropin n. (Biology, medicine) Synonym of growth hormone.
SOMATOTROPIN n. a polypeptide growth hormone, also SOMATOTROPHIN, SOMATOTROPINE.
THERMOMOTORSTHERMOMOTOR n. an engine that produces force from the expansion of a heated fluid.
THORACOSTOMYthoracostomy n. Incision into the chest wall, with maintenance of the opening for drainage.
THORACOSTOMY n. the construction of an artificial opening in the chest, usually to draw off fluid or release a buildup of air.
TRICHOTOMOUStrichotomous adj. Divided into three parts, or into threes; forking three ways.
trichotomous adj. (Set theory) Such that, for all x and y in X, and for a binary relation R, exactly one of xRy, yRx or x=y holds.
TRICHOTOMOUS adj. divided into three parts.

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: 53 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: 9 words
  • Scrabble in Italian: 33 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 18 words


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