Ecdysis

Definition

The process of shedding or molting the old outer cuticle in arthropods, including insects, arachnids, and crustaceans, to allow for growth or metamorphosis.

Etymology

From Greek 'ekdusis', meaning 'a shedding' or 'getting out'.

Example

The cicada undergoes ecdysis multiple times throughout its life cycle to grow larger and progress through its developmental stages.

Synonyms

• Molting
• Shedding

Related Terms

• Metamorphosis
• Exoskeleton
• Instar
• Cuticle

Usage Notes

Ecdysis occurs periodically and is essential for the growth and development of arthropods. The frequency and number of ecdyses can vary among species.