Barrelfish

Part of speech: noun

Definitions

1. A marine species distinguished by its elongated, cylindrical body, commonly residing in deep ocean waters while showcasing unique coloration and feeding patterns
2. This oceanic fish is noted for its distinctive shape and vibrant colors, often found in deeper habitats where it displays specialized behaviors
3. A type of fish living in deep ocean areas, characterized by its long, tube-like body and specialized feeding habits

Etymology: Barrelfish is a compound of "barrel" and "fish," and the name describes the animal's appearance rather than any deep-sea habit. The barrel half refers to the fish's cylindrical, barrel-shaped body, a plain image that gives the name its whole meaning. The word is used for a deep-sea fish of the long, slender kind, so the name is a straightforward description of its shape. Because the word is a transparent compound, there is little hidden history to uncover. Its interest lies in how directly English builds a name from two ordinary nouns: one describes what the creature looks like, the other says what kind of creature it is. Compounds like this were a common way of naming unfamiliar animals, since a speaker could identify the shape at a glance without any special vocabulary.