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There are 6 nine-letter words beginning with HYDROS

HYDROSEREhydrosere n. A plant succession in which an open freshwater naturally dries out, gradually becoming swamp, marsh…
HYDROSERE n. an ecological sere originating in an aquatic habitat.
HYDROSKIShydroskis n. Plural of hydroski.
HYDROSKI n. a plate attached to a seaplane to facilitate takeoff and landings.
HYDROSOLShydrosols n. Plural of hydrosol.
HYDROSOL n. an aqueous solution of a colloid.
HYDROSOMAhydrosoma n. (Biology) The entire organism of any hydrozoon.
HYDROSOMA n. all the zooids of a hydroid colony collectively, also HYDROSOME.
HYDROSOMEhydrosome n. (Biology) A colony of hydrozoans considered as a single organism.
HYDROSOME n. all the zooids of a hydroid colony collectively, also HYDROSOMA.
HYDROSTAThydrostat n. A mechanism that regulates the amount of water in a boiler.
hydrostat n. (Biology) A muscle tissue, composed mostly of water, that maintains a constant volume during contraction.
HYDROSTAT n. a contrivance or apparatus to prevent the explosion of steam boilers.

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: 9 words
  • Scrabble in French: 1 word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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