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There are 13 twelve-letter words containing H, N, 2O, P, R, S and Y

BRONCHOSCOPYbronchoscopy n. (Medicine) A technique for viewing the bronchi using a flexible instrument called a bronchoscope.
BRONCHOSCOPY n. examination of the bronchi.
HYDROPHANOUShydrophanous adj. (Mineralogy) Made transparent by immersion in water.
HYDROPHANOUS adj. becoming transparent when placed in water.
HYDROPHYTONSHYDROPHYTON n. the coenosarc of a hydroid colony.
HYMENOPHOREShymenophores n. Plural of hymenophore.
HYMENOPHORE n. the fruiting body of some basidiomycetous fungi.
HYPOPLASTRONhypoplastron n. The third lateral plate in the plastron of turtles.
HYPOPLASTRON n. the plate behind the hyoplastron in a turtle's plastron.
MORPHOSYNTAXmorphosyntax n. (Linguistics) Morphology and syntax regarded as an interlinked unit.
morpho-syntax n. (Linguistics) The system of the internal structure of words (morphology) and the way in which words…
morpho-syntax n. (Linguistics, formal) Grammar.
ORNITHOSCOPYornithoscopy n. Birdwatching.
ORNITHOSCOPY n. bird watching.
OROPHARYNGESoropharynges n. Plural of oropharynx.
OROPHARYNX n. the part of the pharynx between the soft palate and the epiglottis.
OROPHARYNXESoropharynxes n. Plural of oropharynx.
OROPHARYNX n. the part of the pharynx between the soft palate and the epiglottis.
PORPHYROPSINporphyropsin n. Any of a group of purple carotenoid pigments, similar to rhodopsin, in the retinas of some fish.
PORPHYROPSIN n. a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin.
SYNAPOMORPHYsynapomorphy n. (Cladistics) A derived trait that is shared by two or more taxa of shared ancestry.
SYNCHROSCOPEsynchroscope n. An instrument that indicates the degree to which two alternating current systems are synchronised with…
synchroscope n. An instrument used to synchronise the propellers of a twin-engine aircraft.
SYNCHROSCOPE n. an instrument for detecting whether two moving parts are synchronized.
THYROTROPINSthyrotropins n. Plural of thyrotropin.
THYROTROPIN n. a hormone, produced in the anterior lobe of the pituitary gland, which stimulates the thyroid, also THYROTROPHIN.

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: 70 words
  • Scrabble in French: 6 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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