noun
- Plural of aciculum; small, needle-like or bristle-like structures found in certain organisms, especially marine worms and other invertebrates.
Usage: technical; biology
Examples
- The polychaete worm uses its aciculums to anchor itself in the sediment.
- Under the microscope, the aciculums of the marine organism were clearly visible.
- These small aciculums help the creature move through the water.
- The aciculums serve as sensory organs in some invertebrate species.