| ORNITHOPTER | • ornithopter n. An aircraft that generates lift through the flapping of its wings. • ORNITHOPTER n. a birdlike archaic flying machine. |
| ORNITHOPTERS | • ornithopters n. Plural of ornithopter. • ORNITHOPTER n. a birdlike archaic flying machine. |
| ORTHOPTER | • orthopter n. Any insect of the order Orthoptera. • orthopter n. Synonym of ornithopter. • ORTHOPTER n. a type of aircraft propelled with flapping wings. |
| ORTHOPTERA | • orthoptera n. Any of very many four-winged insects, of the order Orthoptera, such as grasshoppers, crickets and locusts. • Orthoptera prop.n. A taxonomic order within the superorder Polyneoptera – various insects including crickets, grasshoppers… • ORTHOPTERON n. any member of the Orthoptera, an order of mandibulate insects, also ORTHOPTERAN. |
| 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. |
| ORTHOPTERANS | • orthopterans n. Plural of orthopteran. • ORTHOPTERAN n. any member of the Orthoptera, an order of mandibulate insects, also ORTHOPTERON. |
| ORTHOPTERIST | • orthopterist n. An entomologist who specialises in orthopters. • ORTHOPTERIST n. a student of insects. |
| ORTHOPTERISTS | • orthopterists n. Plural of orthopterist. • ORTHOPTERIST n. a student of insects. |
| ORTHOPTEROID | • orthopteroid n. (Entomology) Any of the insects historically included in the order Orthoptera, including the cockroaches… • ORTHOPTEROID n. a member of the Orthoptera, cockroaches. |
| ORTHOPTEROIDS | • orthopteroids n. Plural of orthopteroid. • ORTHOPTEROID n. a member of the Orthoptera, cockroaches. |
| ORTHOPTEROLOGY | • orthopterology n. The scientific study of the Orthoptera. • ORTHOPTEROLOGY n. the study of cockroaches. |
| ORTHOPTERON | • orthopteron n. Alternative form of orthopteran. • ORTHOPTERON n. any member of the Orthoptera, an order of mandibulate insects, also ORTHOPTERAN. |
| ORTHOPTEROUS | • orthopterous adj. (Zoology) Belonging to the Orthoptera. • ORTHOPTEROUS adj. pertaining or belonging to insect order including grasshoppers, crickets, etc. |
| ORTHOPTERS | • orthopters n. Plural of orthopter. • ORTHOPTER n. a type of aircraft propelled with flapping wings. |
| XANTHOPTERIN | • xanthopterin n. A yellow crystalline solid that occurs mainly in the wings of butterflies and in the urine of mammals… • XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE. |
| XANTHOPTERINE | • xanthopterine n. Alternative form of xanthopterin. • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN. |
| XANTHOPTERINES | • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN. |
| XANTHOPTERINS | • xanthopterins n. Plural of xanthopterin. • XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE. |