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There are 9 thirteen-letter words containing OPTERI

CARYOPTERISESCARYOPTERIS n. any of several deciduous subshrubs of the genus Caryopteris, having small, blue flowers.
COLEOPTERISTScoleopterists n. Plural of coleopterist.
COLEOPTERIST n. one who studies beetles.
HELICOPTERINGhelicoptering v. Present participle of helicopter.
helicoptering n. Transport by helicopter.
HELICOPTER v. to travel by helicopter.
LEPIDOPTERISTlepidopterist n. Someone who studies lepidoptery; someone who studies butterflies and moths.
LEPIDOPTERIST n. a specialist in lepidopterology.
NEUROPTERISTSNEUROPTERIST n. a person who studies the Neuropteroidea, lacewing flies.
ORTHOPTERISTSorthopterists n. Plural of orthopterist.
ORTHOPTERIST n. a student of insects.
TRICHOPTERISTTRICHOPTERIST n. someone who studies the caddis flies.
XANTHOPTERINExanthopterine n. Alternative form of xanthopterin.
XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN.
XANTHOPTERINSxanthopterins n. Plural of xanthopterin.
XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 35 words
  • Scrabble in French: no word
  • Scrabble in Spanish: 2 words
  • Scrabble in Italian: 5 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 5 words


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