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Meaning of seventeen-year locust

sev'en•teen'-year lo'cust

Pronunciation: (sev'un-tēn'yēr"), [key]
  1. a cicada, Magicicada septendecim, of the eastern U.S., having nymphs that live in the soil, usually emerging in great numbers after 17 years in the North or 13 years in the South. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.