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There are 19 words containing OPTERI

AMINOPTERINaminopterin n. (Pharmacology) A 4-amino analog of folic acid used as a chemotherapy drug.
AMINOPTERIN n. a rodenticide.
AMINOPTERINSaminopterins n. Plural of aminopterin.
AMINOPTERIN n. a rodenticide.
CARYOPTERIScaryopteris n. Any Asian shrub of the genus Caryopteris.
CARYOPTERIS n. any of several deciduous subshrubs of the genus Caryopteris, having small, blue flowers.
CARYOPTERISESCARYOPTERIS n. any of several deciduous subshrubs of the genus Caryopteris, having small, blue flowers.
COLEOPTERISTcoleopterist n. (Entomology) One who studies beetles.
COLEOPTERIST n. one who studies beetles.
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.
LEPIDOPTERISTSlepidopterists n. Plural of lepidopterist.
LEPIDOPTERIST n. a specialist in lepidopterology.
NEUROPTERISTneuropterist n. An entomologist whose speciality is lacewings of the order Neuroptera.
NEUROPTERIST n. a person who studies the Neuropteroidea, lacewing flies.
NEUROPTERISTSNEUROPTERIST n. a person who studies the Neuropteroidea, lacewing flies.
ORTHOPTERISTorthopterist n. An entomologist who specialises in orthopters.
ORTHOPTERIST n. a student of insects.
ORTHOPTERISTSorthopterists n. Plural of orthopterist.
ORTHOPTERIST n. a student of insects.
TRICHOPTERISTTRICHOPTERIST n. someone who studies the caddis flies.
TRICHOPTERISTSTRICHOPTERIST n. someone who studies the caddis flies.
XANTHOPTERINxanthopterin n. A yellow crystalline solid that occurs mainly in the wings of butterflies and in the urine of mammals…
XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE.
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.
XANTHOPTERINESXANTHOPTERINE 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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