The process of shedding or sloughing off an outer covering such as skin or shell; the act of exuviating.
From 'exuviate' + '-ion' (suffix forming abstract nouns), following standard English nominalization patterns from Latin-derived verbs.
Exuviation in arthropods is metabolically expensive and dangerous—the creature must split its own armor and squeeze out of it, which is why insects often hide and remain motionless during this vulnerable window.
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