Definition, Meaning & Synonyms

cnidocil

Noun
/ˈnʌɪdəˌsɪl/
Definition
A cnidocil is a specialized structure found on the surface of cnidarians, such as jellyfish and sea anemones, that helps trigger the discharge of nematocysts, or stinging cells.
Examples
  • The cnidocil of the jellyfish senses the presence of nearby prey.
  • When touched, the cnidocil quickly stimulates the release of toxins from the nematocysts.
  • Researchers study cnidocils to better understand how jellyfish and other cnidarians capture their food.
Meaning
The term cnidocil refers to the hair-like projection that plays a crucial role in the defense and predation mechanisms of cnidarians.
Synonyms
  • stinging hair
  • trigger structure
  • sensory projection