Definition

1. Noun:
   • The process of shedding an outer layer: In biology, "ecdysis" specifically refers to the periodic shedding or molting of the cuticle (a hard external covering) in arthropods, such as insects and crustaceans, or the outer skin in reptiles, such as snakes and lizards.

Usage Examples

• Noun:
  • The cicada's ecdysis left its empty exoskeleton clinging to the tree bark.
  • Scientists studied the hormonal triggers for ecdysis in the larval stage of the beetle.
  • A snake's ecdysis is often preceded by its eyes becoming cloudy.

Advanced Usage

• "To undergo ecdysis": This is the standard phrase to describe an animal experiencing this molting process.
  • The tarantula will remain hidden in its burrow while it undergoes ecdysis.

Variants and Related Words

• Ecdysone (n): A hormone that triggers the process of ecdysis in arthropods.
  • The release of ecdysone initiates the molting cycle.
• Ecdysial (adj): Relating to or involved in ecdysis.
  • The ecdysial suture is a line of weakness where the old cuticle splits.

Synonyms

• Molting (n): The most common general synonym, especially in non-technical contexts.
• Shedding (n): Often used, particularly for reptiles and some other animals.
• Exuviation (n): A more technical synonym, specifically referring to the casting off of an outer integument.

Related Terms (Not Phrasal Verbs)

• Exuviae (n, plural): The cast-off outer skin or shell left behind after ecdysis.
  • The collection of exuviae can help researchers monitor insect populations.

Noun

1. periodic shedding of the cuticle in arthropods or the outer skin in reptiles