Ecdysteroids

Definition

A group of steroid hormones that regulate molting and metamorphosis in insects.

Etymology

From Greek 'ekdysis', meaning 'shedding', and 'steroids' indicating a class of hormones.

Example

Ecdysone, the primary ecdysteroid in insects, triggers the final stages of metamorphosis.

Related Terms

• Molting
• Metamorphosis
• Prothoracic glands
• JH

Usage Notes

Ecdysteroids are vital for insect development and survival, influencing a range of physiological processes including growth, cuticle formation, and reproductive maturation.