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There are 13 fifteen-letter words containing H, 2I, 2L, 2O and R

AEROLITHOLOGIESAEROLITHOLOGY n. the study of aerolites.
ALLOTRIOMORPHICallotriomorphic adj. (Chemistry) allotropic.
allotriomorphic adj. (Geology) xenomorphic.
ALLOTRIOMORPHIC adj. crystalline in internal structure but not in outward form.
CHORIOALLANTOICchorioallantoic adj. Of or pertaining to the chorioallantois.
CHORIOALLANTOIC adj. of or like a chorioallantois, a highly vascularized fetal membrane.
CHORIOALLANTOISchorioallantois n. (Anatomy) The vascular extraembryonic membrane, formed by the fusion of the allantois and the chorion…
CHORIOALLANTOIS n. a highly vascularized fetal membrane.
COUNCILLORSHIPScouncillorships n. Plural of councillorship.
COUNCILLORSHIP n. the office of councillor, also COUNCILORSHIP.
HELIOTROPICALLYheliotropically adv. In a heliotropic manner.
HELIOTROPICAL adv. turning towards the sun, also HELIOTROPIC.
HYDROBIOLOGICALhydrobiological adj. Of or pertaining to hydrobiology.
HYDROBIOLOGICAL adj. relating to hydrobiology, the study of aquatic organisms.
IDIOMORPHICALLYidiomorphically adv. In an idiomorphic manner.
IDIOMORPHIC adv. of well-crystallized minerals, having a characteristic shape.
IONOSPHERICALLYionospherically adv. In terms of the ionosphere.
IONOSPHERIC adv. relating to the ionosphere.
NONHISTORICALLYnonhistorically adv. In a nonhistorical manner.
OSCILLOGRAPHIESOSCILLOGRAPHY n. use of an oscillograph.
PHOTOMULTIPLIERphotomultiplier n. (Physics) A device, normally in the form of a tube, that uses a photocathode to convert photons into…
PHOTOMULTIPLIER n. a photocell with a series of dynodes which amplify the emission current by electron multiplication.
RADIOPHONICALLYradiophonically adv. In a radiophonic manner.
RADIOPHONIC adv. of music, produced electronically; producing electronic music.

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: 62 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: 4 words
  • Scrabble in Italian: 9 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 100 words


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