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There are 17 nine-letter words beginning with QUADR

QUADRANTS• quadrants n. Plural of quadrant.
• QUADRANT n. a quarter section of a circle.
QUADRATED• quadrated v. Simple past tense and past participle of quadrate.
• QUADRATE v. to conform or agree.
QUADRATES• quadrates v. Third-person singular simple present indicative form of quadrate.
• QUADRATE v. to conform or agree.
QUADRATIC• quadratic adj. Square-shaped.
• quadratic adj. (Mathematics) of a polynomial, involving the second power (square) of a variable but no higher powers…
• quadratic adj. (Mathematics) of an equation, of the form 𝑎𝑥2+𝑏𝑥+𝑐=0.
QUADRATUS• quadratus n. (Anatomy) Any of several roughly square or rectangular muscles, e.g. in the abdomen, thigh, and eye socket.
• QUADRATUS n. the name of several quadrangular muscles.
QUADRELLA• quadrella n. (Gambling, horse racing, Australia, New Zealand) A bet where the bettor must pick the winners of four…
• QUADRELLA n. (Australian) a group of four horse races at a meeting for which the punter has to select the four winners.
QUADRICEP• quadricep n. Quadriceps.
• QUADRICEP n. the great extensor muscle of the knee, divided above into four parts which unite in a single tendon at the knee.
QUADRIFID• quadrifid adj. Divided, or deeply cleft, into four parts.
• QUADRIFID adj. four-part (as with a leaf).
QUADRIGAE• quadrigae n. Plural of quadriga.
• QUADRIGA n. (Latin) a four-horse chariot.
QUADRIGAS• quadrigas n. Plural of quadriga.
• QUADRIGA n. (Latin) a four-horse chariot.
QUADRILLE• quadrille n. A dance originating in the mid-1700s with four couples forming a square, rather much like the modern square dance.
• quadrille n. The music for this dance.
• quadrille n. (Card games) A Spanish trick-taking card game from the 1700s played with a 40-card deck.
QUADRIVIA• quadrivia n. Plural of quadrivium.
• QUADRIVIUM n. (Latin) a higher division of seven liberal arts studied in the Middle Ages, comprising arithmetic, music, astronomy, geometry.
QUADROONS• quadroons n. Plural of quadroon.
QUADRUMAN• quadruman n. Alternative form of quadrumane.
• QUADRUMAN n. a former name for primates other than man, also QUADRUMANE.
QUADRUPED• quadruped n. A four-footed or four-legged animal.
• quadruped n. A mammal ambulating on all fours.
• QUADRUPED n. a four-footed animal.
QUADRUPLE• quadruple adj. Being four times as long, as big or as many of something.
• quadruple v. (Transitive) To multiply by four.
• quadruple v. (Intransitive) To increase by a factor of four.
QUADRUPLY• quadruply adv. Four times.
• quadruply adv. In four (often different) ways.
• QUADRUPLY n. (Scots) a reply to a triply.

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: 34 words
  • Scrabble in French: 8 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 35 words
  • Scrabble in German: 12 words
  • Scrabble in Romanian: no word


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