Definition

1. Noun:
   • Excretory organ in flatworms: A "flame cell" is a specialized excretory cell found in certain invertebrates, particularly flatworms (Platyhelminthes). It functions like a primitive kidney, removing waste fluids from the body. The name comes from the flickering, flame-like motion of the cilia (microscopic hairs) inside the cell that propel the waste.

Usage Examples

• Noun:
  • The flatworm's excretory system is composed of a network of tubules connected to flame cells.
  • Under the microscope, the movement of the cilia in the flame cell resembles a flickering flame.

Advanced Usage

• In biological taxonomy: The structure of the flame cell is a key characteristic used in the classification of flatworms and other acoelomate animals.
  • The presence of flame cells helps distinguish platyhelminths from other worm phyla.

Variants and Related Words

• Protonephridium (n): The complete excretory structure, consisting of a tubule and one or more flame cells.
  • A protonephridium is a network of flame cells and their connecting ducts.

Synonyms

• Solenocyte: A similar type of excretory cell with a single flagellum, found in some other invertebrates.

Related Phrases

• Flame cell system: Refers to the entire network of flame cells and tubules responsible for osmoregulation and excretion.
  • The flame cell system regulates water balance in the flatworm's body.

Noun

1. organ of excretion in flatworms