Entomology. belonging or pertaining to the order Diptera, comprising the houseflies, mosquitoes, and gnats, characterized by a single, anterior pair of membranous wings with the posterior pair reduced to small, knobbed structures.
Botany. having two winglike appendages, as seeds or stems.

1765–75; < Neo-Latin dipterus < Greek dípteros; see Diptera, -ous

nondipterous, adjective
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World English Dictionary
dipterous (ˈdɪptərəs)
1.  Also: dipteran of, relating to, or belonging to the Diptera, a large order of insects having a single pair of wings and sucking or piercing mouthparts. The group includes flies, mosquitoes, craneflies, and midges
2.  botany having two winglike parts: a dipterous seed
[C18: from New Latin, from Greek dipteros, from di- two + pteros wing]

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American Heritage
Medical Dictionary

dipterous dip·ter·ous (dĭp'tər-əs)

  1. Of or characteristic of insects of the order Diptera.

  2. Having two wings or winglike appendages.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
dipteran   (dĭp'tər-ən)  Pronunciation Key 
Any of various insects of the order Diptera, characterized by a single pair of membranous wings, a pair of club-shaped balancing organs, and large compound eyes. Dipterans include the flies, mosquitoes, midges, and gnats.

dipterous adjective
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
They may be reared by collecting lepidopterous and dipterous pupae.
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