Planarian: meaning, definitions and examples
🐍
planarian
[ pləˈnɛəriən ]
biology organism
A planarian is a flatworm of the class Turbellaria, characterized by a flattened body and the ability to regenerate lost parts. These organisms are often found in freshwater environments and are known for their distinct head and bilaterally symmetrical body. They are commonly studied in research due to their remarkable regenerative abilities.
Synonyms
flatworm, turbellarian
Examples of usage
- Planarians are commonly used in biological research.
- The planarian's ability to regenerate makes it an important model organism.
- Many species of planarians inhabit freshwater streams and ponds.
Etymology
The term 'planarian' originates from the Latin word 'planarius,' meaning 'flat' or 'level.' This nomenclature reflects the flat morphology of these organisms. The study of planarians dates back to the 19th century when researchers began to explore their unique anatomical and regenerative properties. Planarians have been used extensively in scientific experiments, particularly in studies related to regeneration and developmental biology, mainly due to their ability to regenerate lost body parts after injury. Over time, the fascination with these creatures has led to greater understanding of biological processes and the evolution of multicellular organisms.