Uricotelic

Part of speech: adjective

Definitions

1. Describing types of animals that primarily release nitrogenous waste as uric acid rather than urea or ammonia
2. Referring to organisms that excrete nitrogen waste predominantly in the form of uric acid instead of urea or ammonia
3. Characterizing species that primarily eliminate nitrogenous waste through uric acid rather than through other excretory products like urea or ammonia

Etymology: "Uricotelic" is a technical coinage built from familiar scientific pieces: "uric" (from French "urique," tied to urine and the substance uric acid), a linking "-o-", the Greek "telos," meaning "end" or "completion," and the adjectival "-ic." The Greek element appears in a family of biological terms describing how an animal ends up disposing of a particular byproduct, so the word reads literally as something like "ending in uric acid." The "-telic" part is the interesting piece. Greek "telos" gave English a whole set of terms for the final stage or goal of something, and biologists adapted it to describe the endpoint of nitrogen metabolism. Animals that excrete ammonia are called ammonotelic, those that excrete urea are ureotelic, and uricotelic animals, such as birds, reptiles and many insects, convert nitrogen waste into uric acid, which needs little water to expel as a semi-solid.