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There are 18 fifteen-letter words containing A, L, N, 2O, 2P and S

APOLIPOPROTEINSapolipoproteins n. Plural of apolipoprotein.
APOLIPOPROTEIN n. a protein that combines with a lipid to form a lipoprotein.
COUNTERPROPOSALcounterproposal n. A proposal made as an alternative to another, earlier proposal.
counter-proposal n. Alternative form of counterproposal.
COUNTERPROPOSAL n. a return proposal made by one who has rejected a proposal.
DISPROPORTIONALdisproportional adj. Disproportionate.
DISPROPORTIONAL adj. relating to disproportion.
MONOPROPELLANTSmonopropellants n. Plural of monopropellant.
MONOPROPELLANT n. a rocket propellant containing both the fuel and the oxidizer in a single substance.
OVERPOPULATIONSoverpopulations n. Plural of overpopulation.
OVERPOPULATION n. population so dense as to cause environmental deterioration.
PHILANTHROPOIDSphilanthropoids n. Plural of philanthropoid.
PHILANTHROPOID n. a person who works for a philanthropic organization.
PHOSPHORYLATINGphosphorylating v. Present participle of phosphorylate.
phosphorylating adj. That phosphorylates.
PHOSPHORYLATE v. to cause (an organic compound) to take up or combine with phosphoric acid or a phosphorus-containing group.
PHOSPHORYLATIONphosphorylation n. (Biochemistry) the process of transferring a phosphate group from a donor to an acceptor; often catalysed by enzymes.
PHOSPHORYLATION n. the process of phosphorylating a chemical compound.
POLYPHLOESBOEANpolyphloesboean adj. (Poetic) Loudly roaring; used to describe the ocean.
POLYPHLOESBOEAN adj. loud-roaring, also POLYPHLOISBIC.
POPULARISATIONSpopularisations n. Plural of popularisation.
POPULARISATION n. the act of popularising, also POPULARIZATION.
POPULARIZATIONSpopularizations n. Plural of popularization.
POPULARIZATION n. the act of popularizing, also POPULARISATION.
POSTPOLLINATIONpostpollination adj. After pollination.
POSTPOLLINATION adj. taking place after pollination.
PREPOSITIONALLYprepositionally adv. In a prepositional manner.
prepositionally adv. As a preposition.
PREPOSITIONAL adv. relating to a preposition.
PREPROFESSIONALpreprofessional adj. Prior to starting a profession.
preprofessional n. One who is working towards becoming a professional.
PREPROFESSIONAL adj. of or relating to the period preceding specific study for or practice of a profession.
PROPOSITIONALLYpropositionally adv. In a propositional manner.
PROPOSITIONAL adv. of the nature of a proposition.
PROPYLITISATIONPROPYLITISATION n. the process of propylitising, also PROPYLITIZATION.
SUPPOSITIONALLYsuppositionally adv. In a suppositional manner; by means of, or in the context of, supposition.
SUPPOSITIONAL adv. having the nature of a supposition.
UNPHILOSOPHICALunphilosophical adj. Not philosophical.
UNPHILOSOPHICAL adj. not philosophical, also UNPHILOSOPHIC.

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: 155 words
  • Scrabble in French: 18 words
  • Scrabble in Spanish: 8 words
  • Scrabble in Italian: 21 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 7 words


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