noun
- Plural of planaria; small, flat freshwater worms of the class Turbellaria, often used in biological research.
Usage: scientific; typically used in plural form; common in educational and laboratory contexts
Examples
- The biology students observed planarias under the microscope to study regeneration.
- Planarias are frequently used in experiments because they can regenerate lost body parts.
- The aquarium contained several planarias that had been collected from the local pond.
- Researchers studied how planarias respond to light and chemical stimuli.
- In the lab, planarias were placed in different environments to test their behavior.