| orthopter | (n) heavier-than-air craft that is propelled by the flapping of wings, Syn. ornithopter |
| orthoptera | (n) grasshoppers and locusts; crickets, Syn. order Orthoptera |
| orthopterous insect | (n) any of various insects having leathery forewings and membranous hind wings and chewing mouthparts, Syn. orthopteran, orthopteron |
| Orthoptera | ‖prop. n. pl. [ NL., fr. Gr. ☞ The anterior wings are usually thickened and protect the membranous posterior wings, which are larger and fold longitudinally like a fan. They also have chewing mouth parts. The |
| Orthopteran | n. (Zool.) One of the |
| Orthopterous | a. (Zool.) Of or pertaining to the |