This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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noun-plural. An extensive order of insects having only two functional wings and two balancers, as the house fly, mosquito, etc. They have a suctorial proboscis, often including two pairs of sharp organs (mandibles and maxillæ) with which they pierce the skin of animals. They undergo a complete metamorphosis, their larvæ (called maggots) being usually without feet.

An order of metabolous hexapod insects.

[l. c] Plural of dipteron.

n. a large order of insects having a single pair of wings and sucking or piercing mouths; includes true flies and mosquitoes and gnats and crane flies

"The mosquitoes of Loreto have a deserved reputation for driving away such visitors as do not care to leave much of their blood with the redoubtable diptera."

animal order