chambered nautilus
The "chambered nautilus" is a marine cephalopod known for its distinctive spiral shell with multiple chambers, often found in the Pacific and Indian Oceans.
🇺🇸 US Voice:
🇬🇧 UK Voice:
Definition
C1Marine Biology
(scientific, technical)A cephalopod mollusk with a spiral shell divided into progressively larger chambers, primarily used for buoyancy control.
Example
- The chambered nautilus uses its shell chambers to regulate buoyancy in the water.
C1Zoology
(scientific, technical)A species of nautilus, specifically *Nautilus pompilius*, notable for its multi-chambered shell and ancient lineage.
Example
- The chambered nautilus, *Nautilus pompilius*, is often studied for its unique shell structure.