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Definition of Periodical cicada
1. Noun. North American cicada; appears in great numbers at infrequent intervals because the nymphs take 13 to 17 years to mature.
Exact synonyms: Magicicada Septendecim, Seventeen-year Locust
Generic synonyms: Cicada, Cicala
Group relationships: Genus Magicicada, Magicicada
Generic synonyms: Cicada, Cicala
Group relationships: Genus Magicicada, Magicicada