List of 11-letter words containing

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There are 19 eleven-letter words containing OPTER

AMINOPTERIN	• aminopterin n. (Pharmacology) A 4-amino analog of folic acid used as a chemotherapy drug. • AMINOPTERIN n. a rodenticide.
CARYOPTERIS	• caryopteris n. Any Asian shrub of the genus Caryopteris. • CARYOPTERIS n. any of several deciduous subshrubs of the genus Caryopteris, having small, blue flowers.
CHIROPTERAN	• chiropteran n. (Zoology) Any mammal, of the order Chiroptera, that has forelimbs modified to form wings; a bat. • CHIROPTERAN n. a member of the Chiroptera, an order of mammals comprising the bats.
COLEOPTERAL	• coleopteral adj. (Zoology) Having wings covered with a case or sheath; coleopterous. • COLEOPTERAL adj. of or like any member of the insect order Coleoptera.
COLEOPTERAN	• coleopteran n. (Coleopterology) Any insect of the order Coleoptera; includes the beetles, weevils and fireflies. • COLEOPTERAN n. a large order of insects having the front wings modified as hard wing-cases, and comprising the beetles and weevils, also COLEOPTERON.
COLEOPTERON	• COLEOPTERON n. a large order of insects having the front wings modified as hard wing-cases, and comprising the beetles and weevils, also COLEOPTERAN.
GYROCOPTERS	• gyrocopters n. Plural of gyrocopter. • GYROCOPTER n. an airplane balanced and supported by the aerodynamic forces acting on rapidly rotating horizontal or slightly inclined airfoils, also GYROPLANE.
HELICOPTERS	• helicopters n. Plural of helicopter. • helicopters v. Third-person singular simple present indicative form of helicopter. • HELICOPTER v. to travel by helicopter.
HOMOPTERANS	• homopterans n. Plural of homopteran. • HOMOPTERAN n. a member of the Homoptera, cicadas, froghoppers etc.
HOMOPTEROUS	• homopterous adj. (Zoology) Of or pertaining to the Homoptera, a former suborder of insects. • HOMOPTEROUS adj. relating to the Homoptera, aphids, cicadas, and scale insects.
HYMENOPTERA	• hymenoptera n. Plural of hymenopteron. • Hymenoptera prop.n. A taxonomic order within the superorder Endopterygota – sawflies, wasps, bees and ants. • HYMENOPTERON n. an order of insect having four membranous wings, e.g. ants, bees, wasps, also HYMENOPTERAN.
LEPIDOPTERA	• lepidoptera n. Plural of lepidopteron. • Lepidoptera prop.n. A taxonomic order within the class Insecta – butterflies, moths and skippers. • LEPIDOPTERON n. any of numerous insects of the order Lepidoptera, typically having two pairs of wings covered with fragile scales, also LEPIDOPTERAN.
NEUROPTERAN	• neuropteran n. Any insect of the order Neuroptera, having four large and membranous wings. • NEUROPTERAN n. any of an order of insect including lacewing flies, also NEUROPTERON.
NEUROPTERON	• neuropteron n. Any member of the order Neuroptera. • NEUROPTERON n. any of an order of insect including lacewing flies, also NEUROPTERAN.
ORNITHOPTER	• ornithopter n. An aircraft that generates lift through the flapping of its wings. • ORNITHOPTER n. a birdlike archaic flying machine.
ORTHOPTERAN	• orthopteran n. (Zoology) Any of many insects of the order Orthoptera. • ORTHOPTERAN n. any member of the Orthoptera, an order of mandibulate insects, also ORTHOPTERON.
ORTHOPTERON	• orthopteron n. Alternative form of orthopteran. • ORTHOPTERON n. any member of the Orthoptera, an order of mandibulate insects, also ORTHOPTERAN.
PLECOPTERAN	• plecopteran n. (Zoology) Any insect in the order Plecoptera, the stoneflies. • PLECOPTERAN n. a member of the Plecoptera, stoneflies.
QUADCOPTERS	• quadcopters n. Plural of quadcopter. • QUADCOPTER n. a pilotless four-rotor helicopter.

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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English Wiktionary: 74 words
Scrabble in French: 25 words
Scrabble in Spanish: 11 words
Scrabble in Italian: 8 words
Scrabble in German: no word
Scrabble in Romanian: 26 words

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