Septendecennial
//ˌsɛptəndɛˈsɛn.i.əl//
"Septendecennial" in a Sentence (1 examples)
The septendecennial emergence of Magicicada septendecim represents one of the most remarkable synchronized reproductive cycles in the animal kingdom, with entire broods surfacing after precisely seventeen years underground.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.