Nautiluses

Part of speech: noun

Definitions

1. A marine cephalopod known for its spiral, chambered shell and buoyancy control, these creatures exhibit ancient lineage and are often regarded as living fossils possessing unique adaptations
2. Characterized by their coiled shells and ability to manage buoyancy, these marine mollusks represent a long evolutionary history and are recognized as living fossils with traits reminiscent of ancient species
3. These marine animals, distinguished by their spiral shells and buoyancy regulation, exhibit traits from prehistoric eras and are often classified as living fossils with remarkable adaptations

Etymology: "Nautiluses" is simply the plural of "nautilus," so the story belongs to the singular. The name comes from Latin "nautilus," itself borrowed from Ancient Greek "nautilos," which meant "sailor" and was also used for the paper nautilus, an octopus-like creature. The Greek root "naut-" relates to ships and sailing, the same root behind "nautical," and the link is a clear one: early observers pictured the creature's shell as a little boat, with its chambers acting like sails or ballast. The modern sense of the word is a scientific borrowing that stayed close to its Greek meaning. The chambered-shell animals now called nautiluses are a different group from the paper nautilus, but the name was carried over to them because the chambered shell suggested the same image of a small vessel sailing the sea.

Synonyms: nautilus