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A substance found in great abundance on some coasts or islands frequented by sea fowls, and composed chiefly of their excrement. It is rich in phosphates and ammonia, and is used as a powerful fertilizer.

A genus of gigantic herbivorous dinosaurs having a birdlike pelvis and large hind legs with three-toed feet capable of supporting the entire body. Its teeth resemble those of the iguana, whence its name. Several species are known, mostly from the Wealden of England and Europe. See Illustration in Appendix.…

Like or pertaining to the genus Iguanodon.

Pertaining to the Iguanidæ.

That which renders fertile; a general name for commercial manures, as guano, phosphate of lime, etc.

Yielding guano. Ure.

A crystalline substance (C5H5N5O) contained in guano. It is also a constituent of the liver, pancreas, and other glands in mammals.

An American herbivorous dinosaur of great size, allied to the iguanodon. It is found in the Cretaceous formation.

Same as Iguanoid.

light. It was formerly used in dyeing calico, and was obtained in a large quantities from guano. Formerly called also ammonium purpurate.

h in some genera had only three functional toes, and supported the body in walking as in Iguanodon. See Illust. in Appendix.

A crystalline mineral found in guano. It is a hydrous phosphate of magnesia and ammonia.