Relating to the second nymphal stage in the development of certain insects that undergo multiple molts before becoming adults.
From Greek 'deuteros' (second) + 'nympha' (bride, pupa), combining the prefix for 'second' with the term for an insect's intermediate life stage. The suffix '-al' makes it an adjective describing properties of this stage.
Insects like mites and some arthropods have multiple 'teenage' stages called nymphs before adulthood—deutonymphal is the name for the second awkward phase, meaning some creatures go through more growing-up stages than others!
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