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There are 10 twelve-letter words beginning with QUADRI

QUADRICEPSESquadricepses n. Plural of quadriceps.
QUADRICEPS n. the great extensor muscle of the knee, divided above into four parts which unite in a single tendon at the knee.
QUADRIENNIALquadriennial adj. Alternative form of quadrennial.
quadriennial n. Alternative form of quadrennial.
QUADRIENNIAL adj. taking place every four years.
QUADRIENNIUMQUADRIENNIUM n. (Latin) a period of four years, also QUADRENNIUM.
QUADRILLIONSquadrillions n. Plural of quadrillion.
QUADRILLION n. a thousand raised to the fifth power.
QUADRINOMIALquadrinomial adj. Consisting of four names or parts or terms.
quadrinomial n. (Algebra) An expression consisting of four terms.
QUADRINOMIAL n. an expression of four terms.
QUADRIPHONICquadriphonic adj. Alternative form of quadraphonic.
QUADRIPHONIC adj. of, relating to, or using four channels for the transmission, recording, or reproduction of sound, also QUADRAPHONIC, QUADROPHONIC.
QUADRIPLEGIAquadriplegia n. Paralysis from the neck down.
quadriplegia n. Paralysis of all four limbs.
QUADRIPLEGIA n. paralysis of both arms and both legs, also TETRAPLEGIA.
QUADRIPLEGICquadriplegic adj. Of, related to, or suffering from quadriplegia.
quadriplegic n. One who suffers from quadriplegia.
QUADRIPLEGIC adj. relating to quadriplegia, paralysis of both arms and both legs.
QUADRISECTEDquadrisected v. Simple past tense and past participle of quadrisect.
QUADRISECT v. to divide into four equal parts.
QUADRIVALENTquadrivalent adj. (Chemistry) Having a valence of four.
quadrivalent adj. (Of a vaccine) Protecting against four different (usually flu) viruses.
quadrivalent adj. (Graph theory) Said of a graph: that all of its vertices have degree four.

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: 46 words
  • Scrabble in French: 27 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 49 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 1 word


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