• WordNet 3.6
    • n orthopter heavier-than-air craft that is propelled by the flapping of wings
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Century Dictionary and Cyclopedia
    • n orthopter An orthopterous insect; an orthopteran or orthopteron; any member of the Orthoptera.
    • n orthopter A form of dirigible flying-machine or aërodrome, heavier than the air it displaces and using no gas-bag, in which the motor supplying the energy to lift and move the machine acts directly to produce motion in the desired direction. Distinguished from the helicopter, in which helical surfaces revolving like propellers are used to lift the weight by their rotary motion in some direction other than that of the flight. Orthopters are sometimes built with movable wings, beating the air like those of a bird, but more usually the fixed aëroplane with adjustable inclination to the horizon is depended on to give the straight flight, and support the weight. Gliders are in this general class. Sci. Amer., Oct. 12, 1907.
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Chambers's Twentieth Century Dictionary
    • ns Orthopter an insect of the order orthoptera
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Chambers's Twentieth Century Dictionary
Gr. orthos, straight, ptera, pl. of pteron, wing.


In literature:

Tropinotus cinnamomeus, Serville Orthopt.
"Journals Of Two Expeditions Of Discovery In North-West And Western Australia, Vol. 2 (of 2)" by George Grey