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List of 12-letter words containing

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There are 12 twelve-letter words containing H, 2O, S and 2Y

HOMONYMOUSLYhomonymously adv. In a homonymous manner, so as to have the same name or relation.
homonymously adv. Equivocally; ambiguously.
HOMONYMOUS adv. of the nature of homonyms, said of words identical in sound but different in sense.
HOMOZYGOSITYhomozygosity n. The condition of being homozygous.
HOMOZYGOSITY n. the state of being homozygous, inheriting a given genetic factor from both parents.
HOMOZYGOUSLYhomozygously adv. In a homozygous manner.
HOMOZYGOUS adv. inheriting a given genetic factor from both parents.
HYDROPHYTONSHYDROPHYTON n. the coenosarc of a hydroid colony.
HYDROPHYTOUShydrophytous adj. Relating to hydrophytes.
hydrophytous adj. Relating to hydrophytons.
HYDROPHYTOUS adj. like a hydrophyte, also HYDROPHYTIC.
HYPOCOTYLOUSHYPOCOTYLOUS adj. of or like a hypocotyl, the stem of a plant below the cotyledons.
HYPOCYCLOIDShypocycloids n. Plural of hypocycloid.
HYPOCYCLOID n. a curve generated by a point on the circumference of a circle which rolls on the inside of another circle.
HYPOTHYROIDSHYPOTHYROID n. someone suffering from hypothyroidism.
HYSTEROSCOPYhysteroscopy n. (Medicine) The examination of the uterus using a hysteroscope.
OXYHYDROGENSOXYHYDROGEN n. a mixture of hydrogen and oxygen used to provide an intense flame for welding.
POLYPHYLLOUSpolyphyllous adj. (Botany) Having many leaves (or flowers).
POLYPHYLLOUS adj. having the perianth leaves free.
SYNAPOMORPHYsynapomorphy n. (Cladistics) A derived trait that is shared by two or more taxa of shared ancestry.

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: 46 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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