Teräväperäinen

Teräväperäinen is a Finnish adjective that translates to "sharp-tailed" or "pointed-tailed" in English. It is primarily used to describe birds, specifically those that have a tail that tapers to a point or is unusually narrow and sharp at the end. This characteristic can be a distinguishing feature for certain avian species.

The term is descriptive and focuses on a specific morphological trait. Birds described as teräväperäinen might possess a tail that aids in aerial maneuverability, steering, or display. For example, some species of swallows or swifts, known for their agile flight, often exhibit this type of tail shape. The term is part of the common nomenclature used in ornithology and everyday language when discussing Finnish bird species.

While most commonly applied to birds, the adjective could theoretically be used to describe other animals or even inanimate objects with a similarly shaped appendage, though its primary and most recognized application is within the context of avian biology. Understanding the meaning of teräväperäinen helps in identifying and differentiating between various bird species based on their physical attributes.