Search the Dictionary

A stone of various colors bearing the figures of birds.

Of or pertaining to ornithology.

One skilled in ornithology; a student of ornithology; one who describes birds.

That branch of zoölogy which treats of the natural history of birds and their classification.

Divination by means of birds, their flight, etc. Ornithomancy grew into an elaborate science. De Quincey.

An aviary; a poultry house. Weale.

An extinct order of birds. It includes only the Archæopteryx.

An order of herbivorous dinosaurs with birdlike characteristics in the skeleton, esp. in the pelvis and hind legs, which in some genera had only three functional toes, and supported the body in walking as in Iguanodon. See Illust. in Appendix.

See Duck mole, under Duck.

An order of extinct flying reptiles; -- called also Pterosauria.

diate in structure (especially with regard to the pelvis) between reptiles and birds. -- Or`ni*tho*scel"i*dan, a.

Observation of birds and their habits. [R.] De Quincey.

Of or pertaining to ornithotomy.

One who is skilled in ornithotomy.

The anatomy or dissection of birds.

A machine for use in making topographical maps. It is operated by being pushed across country, and not only records distances, like the perambulator, but also elevations.

Of or pertaining to orography.

That branch of science which treats of mountains and mountain systems; orology; as, the orography of Western Europe.

A camera for obtaining a circular panoramic view of the horizon. The photographic plate is placed horizontally with a vertical lens above. A mirror of peculiar shape reflects light from the entire horizon to the lens, by means of which it is focused upon the plate.

A genus of American Eocene mammals allied to the horse, but having four toes in front and three behind.