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List of 13-letter words containing

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There are 12 thirteen-letter words containing I, O, P, Q, S and U

EQUIPARATIONSequiparations n. Plural of equiparation.
EQUIPARATION n. equal treatment.
EQUIPOLLENCESequipollences n. Plural of equipollence.
EQUIPOLLENCE n. the quality of being equipollent, also EQUIPOLLENCY.
PERQUISITIONSperquisitions n. Plural of perquisition.
PERQUISITION n. a diligent inquiry.
PLASTOQUINONEplastoquinone n. (Biochemistry) a quinone, related to the carotenoids, involved in the electron transport process of photosynthesis.
PLASTOQUINONE n. a plant substance that is related to vitamin K and plays a role in photosynthetic phosphorylation.
PROPINQUITIESpropinquities n. Plural of propinquity.
PROPINQUITY n. nearness in space, time or relationship.
QUADRAPHONICSquadraphonics n. Quadraphonic sound.
QUADRAPHONICS n. a system of sound transmission using a minimum of four speakers, also QUADRAPHONY, QUADRIPHONICS, QUADROPHONICS, QUADROPHONY.
QUADRAPHONIESQUADRAPHONY n. a system of sound transmission using four speakers, also QUADRAPHONICS, QUADRIPHONICS, QUADROPHONICS, QUADROPHONY.
QUADRIPHONICSquadriphonics n. Alternative form of quadraphonics.
QUADRIPHONICS n. a system of sound transmission using a minimum of four speakers, also QUADRAPHONICS, QUADRAPHONY, QUADROPHONICS, QUADROPHONY.
QUADROPHONICSQUADROPHONICS n. a system of sound transmission using a minimum of four speakers, also QUADRAPHONICS, QUADRAPHONY, QUADRIPHONICS, QUADROPHONY.
QUADROPHONIESQUADROPHONY n. a system of sound transmission using four speakers, also QUADRAPHONICS, QUADRAPHONY, QUADRIPHONICS, QUADROPHONICS.
QUAESTORSHIPSquaestorships n. Plural of quaestorship.
QUAESTORSHIP n. the office of quaestor, also QUESTORSHIP.
QUASIPERIODICquasiperiodic adj. Almost periodic; recurring at irregular intervals.
quasiperiodic adj. (Mathematics, of a function) Such that an increment of a variable leads to a multiplication by some function.
quasiperiodic adj. (Physics, of an oscillation) Having two unrelated periods.

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: 63 words
  • Scrabble in French: 247 words
  • Scrabble in Spanish: 115 words
  • Scrabble in Italian: 24 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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