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There are 16 fifteen-letter words containing A, B, E, I, 2L and 2O

BACTERIOLOGICALbacteriological adj. Of or pertaining to bacteriology.
BACTERIOLOGICAL adj. relating to bacteriology, also BACTERIOLOGIC.
BIOECOLOGICALLYbioecologically adv. In terms of bioecology.
BIOECOLOGICAL adv. related to bioecology.
COLLABORATIVELYcollaboratively adv. Characterized or done by collaboration.
COLLABORATIVE adv. of the nature of collaboration.
COLOURABILITIESCOLOURABILITY n. the quality of being colourable, also COLORABILITY.
EBULLIOSCOPICALebullioscopical adj. Alternative form of ebullioscopic.
EBULLIOSCOPICAL adj. relating to an ebullioscope, an instrument for measuring the boiling point of liquids, also EBULLIOSCOPIC.
EMBRYOLOGICALLYembryologically adv. Regarding embryology.
EMBRYOLOGICAL adv. relating to embryology, also EMBRYOLOGIC.
ETHNOBIOLOGICALethnobiological adj. Relating to ethnobiology.
ethnobiological n. Such a material.
HOLOMETABOLISMSHOLOMETABOLISM n. of an insect, complete metabolism.
NEUROBIOLOGICALneurobiological adj. Of or pertaining to neurobiology, the biological study of nerve and brain function.
neuro-biological n. Alternative spelling of neurobiological.
NEUROBIOLOGICAL adj. relating to neurobiology.
OBSERVATIONALLYobservationally adv. In an observational way.
OBSERVATIONAL adv. related to observation.
PALAEBIOLOGISTSPALAEBIOLOGIST n. a student of palaebiology.
PALAEOBIOLOGIESPALAEOBIOLOGY n. the study of fossil plants and animals, also PALAEBIOLOGY, PALEOBIOLOGY.
PALAEOBIOLOGISTpalaeobiologist n. A scientist who studies palaeobiology.
PALAEOBIOLOGIST n. a student of palaeobiology.
PALAEOBOTANICALpalaeobotanical adj. Alternative spelling of paleobotanical.
PALAEOBOTANICAL adj. relating to palaeobotany, the study of fossil plants, also PALAEOBOTANIC.
PALEOBIOLOGICALpaleobiological adj. Of or pertaining to paleobiology.
PALEOBIOLOGICAL adj. relating to paleobiology, also PALEOBIOLOGIC.
PALEOBIOLOGISTSpaleobiologists n. Plural of paleobiologist.
PALEOBIOLOGIST n. one who studies paleobiology.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 128 words
  • Scrabble in French: 52 words
  • Scrabble in Spanish: 37 words
  • Scrabble in Italian: 37 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 205 words


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