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There are 20 ten-letter words beginning with CYCLO

CYCLOCROSS• cyclocross n. (Cycle racing) A form of bicycle racing consisting of many laps of a short course featuring pavement…
CYCLODIENE• cyclodiene n. (Organic chemistry) Any of a class of chlorinated polycyclic insecticides derived from cyclopentadiene.
• CYCLODIENE n. a kind of organic insecticide.
CYCLOGIROS• CYCLOGIRO n. an aircraft lifted and propelled by pivoted blades.
CYCLOGRAPH• cyclograph n. Arcograph.
• cyclograph n. Cyclogram.
• CYCLOGRAPH n. an instrument for describing arcs of circles without compasses.
CYCLOIDIAN• cycloidian n. (Zoology) cycloid.
• cycloidian adj. (Zoology) cycloid.
• CYCLOIDIAN n. a fish with cycloid scales.
CYCLOLITHS• CYCLOLITH n. a stone circle.
CYCLOMETER• cyclometer n. (Cycling) A device that counts the revolutions of a bicycle wheel in order to indicate distance travelled.
• cyclometer n. An instrument for measuring circular arcs.
• cyclometer n. (Historical) A machine used to decrypt Enigma machine ciphers.
CYCLOMETRY• cyclometry n. (Geometry) The measurement of circles.
• CYCLOMETRY n. measurement by use of a cyclometer, an instrument for measuring revolutions of a wheel.
CYCLONICAL• CYCLONICAL adj. of or like a cyclone, a circular storm, also CYCLONIC.
CYCLONITES• CYCLONITE n. a type of explosive, aka RDX (Research Department Explosive).
CYCLOPEDIA• cyclopedia n. Alternative spelling of cyclopaedia.
• CYCLOPEDIA n. an encyclopaedia, also CYCLOPAEDIA.
CYCLOPEDIC• cyclopedic adj. Belonging to the circle of the sciences, or to a cyclopedia; of great range, extent, or amount.
• CYCLOPEDIC adj. encyclopaedic, also CYCLOPAEDIC.
CYCLORAMAS• cycloramas n. Plural of cyclorama.
• CYCLORAMA n. a circular panorama.
CYCLORAMIC• cycloramic adj. Of or pertaining to cyclorama.
• CYCLORAMIC adj. of or like a cyclorama, a circular panorama.
CYCLOSPORA• Cyclospora prop.n. A taxonomic genus within the family Eimeriidae – described by Schneider, certain chromists including…
• Cyclospora prop.n. A taxonomic genus within the family Ceramiaceae – described by Agardh, certain red algae, now in Carpoblepharis.
CYCLOSTOME• cyclostome n. Any of various primitive jawless fish of the class Cyclostomata, such as the lamprey or hagfish.
• CYCLOSTOME n. the lamprey.
CYCLOSTYLE• cyclostyle n. (Architecture) A circular group of columns without a core.
• cyclostyle n. A device used to make copies of a drawing or writing, via small punctures made in the outline.
• cyclostyle v. To use such a wheel and puncture device to make copies.
CYCLOTHYME• CYCLOTHYME n. a person with a cyclothymic temperament, having alternating moods of euphoria and depression.
CYCLOTOMIC• cyclotomic adj. Of, or relating to cyclotomy.
• cyclotomic adj. (Mathematics) of, or relating to the complex roots of unity.
• CYCLOTOMIC adj. a mathematical term relating to a polynomial.
CYCLOTRONS• cyclotrons n. Plural of cyclotron.
• CYCLOTRON n. a type of particle accelerator.

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: 47 words
  • Scrabble in French: 12 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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