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List of 12-letter words containing

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There are 20 twelve-letter words containing I, M, N, P, R, S and Y

AMINOPYRINESaminopyrines n. Plural of aminopyrine.
AMINOPYRINE n. a drug formerly used to relieve pain and fever.
CHYMOTRYPSINchymotrypsin n. An endopeptidase enzyme that cleaves peptides at the carboxyl side of tyrosine, tryptophan, and phenylalanine…
CHYMOTRYPSIN n. rennin.
CRYPTOMNESIAcryptomnesia n. (Psychology) The phenomenon of the reappearance of a long-forgotten memory as if it were a new experience.
CRYPTOMNESIA n. latent or subconscious memory.
CRYPTOMNESICcryptomnesic adj. Relating to cryptomnesia.
CRYPTOMNESIC adj. relating to cryptomnesia, latent or subconscious memory.
HYPERMILINGSHYPERMILING n. the practice of maximizing the fuel economy of a motor vehicle, especially through driving technique and vehicle maintenance.
HYPERMNESIAShypermnesias n. Plural of hypermnesia.
HYPERMNESIA n. abnormally vivid or complete memory or recall of the past.
HYPERSOMNIAShypersomnias n. Plural of hypersomnia.
HYPERSOMNIA n. a pathological tendency to sleep excessively.
IMPERSONALLYimpersonally adv. In an impersonal manner.
IMPERSONAL adv. denoting the verbal action of an unspecified agent and hence used with no expressed subject (as methinks) or with a merely formal subject (as rained in it rained).
MYRINGOSCOPEmyringoscope n. A device for examining the eardrum.
MYRINGOSCOPE n. an instrument for viewing the eardrum.
NYCTITROPISMnyctitropism n. (Botany) Synonym of nyctinasty.
NYCTITROPISM n. the assumption by plants of certain positions at night, esp. ones different from daytime positions.
PARASYMBIONTparasymbiont n. (Biology) A parasymbiotic symbiont.
PARASYMBIONT n. a partner in parasymbiosis.
POLYCENTRISMpolycentrism n. A political or cultural system which contains many different centres, especially centres of authority or control.
polycentrism n. (Genetics) (of a chromosomes, etc) the existence of multiple central parts.
polycentrism n. The existence of more than one culture in a particular country or region.
POLYMERISINGpolymerising v. Present participle of polymerise.
POLYMERISE v. to make into a polymer, also POLYMERIZE.
POSTLIMINARYpostliminary adj. Occurring afterward, as a concluding step.
POSTLIMINARY adj. subsequent.
PROGYMNASIUMprogymnasium n. In Germany, a classical school without the higher classes; a school preparatory to a gymnasium.
PROGYMNASIUM n. in Germany, a gymnasium for pupils up to age 16 only, at which university entrance qualifications are not obtainable.
PROPYLAMINESpropylamines n. Plural of propylamine.
PROPYLAMINE n. an amine of propyl.
SEMPITERNITYsempiternity n. (Philosophy, theology) Existence within time but infinitely into the future, as opposed to eternity…
sempiternity n. (Literary) Eternity; a seemingly everlasting period of time.
SEMPITERNITY n. eternity.
STREPTOMYCINstreptomycin n. (Pharmacology) An aminoglycoside and bactericidal antibiotic C21H39N7O12 that is produced by a soil…
STREPTOMYCIN n. an antibiotic produced by the soil bacterium Streptomyces griseus, the first drug to be successful against tuberculosis.
TROPOMYOSINStropomyosins n. Plural of tropomyosin.
TROPOMYOSIN n. a filamentous protein which controls the interaction of actin and myosin in muscle fibres.
TRYPANOSOMICtrypanosomic adj. Of or pertaining to a trypanosome.
TRYPANOSOMIC adj. of or like a trypanosome, also TRYPANOSOMAL.

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: 86 words
  • Scrabble in French: 15 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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