आर्थ्रोपोड्स या सरीसृपों में बाहरी त्वचा में छल्ली का आवधिक शेडिंग

Noun:

उतार डालना, उतार फेंकना, केंचुल-मोचन,

ecdysis's Usage Examples:

ecdysis stage of the molt.

The May-flies are remarkably primitive in certain of their characters, notably the elongate cerci, the paired, entirely mesodermal genital ducts, and the occurrence of an ecdysis after the acquisition of functional wings.

A gnat pupa swims through the water by powerful strokes of its abdomen, while the caddis-fly pupa, in preparation for its final ecdysis, bites its way out of its subaqueous protective case and rises through the water, so that the fly may emerge into the air.

Among the Hexapoda generally there is no subsequent ecdysis nor any further growth after the assumption of the winged state.

The mature dragon-fly nymph, for example, makes its way out of the water in which the early stages have been passed and, clinging to some water-plant, undergoes the final ecdysis that the imago may emerge into the air.

The study of the physiology of ecdysis in its simpler forms has unfortunately been somewhat neglected, investigators having directed their attention chiefly to the cases that are most striking, such as the transformation of a maggot into a fly, or of a caterpillar into a butterfly.

The growth of an insect is usually rapid, and as the cuticle does not share therein, it is from time to time cast off by moulting or ecdysis.

ecdysis's Meaning':

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