- sev|en|teen-year locust
- sev|en|teen-year locust «SEHV uhn TEEN YIHR»,a cicada of the United States that requires from thirteen to seventeen years to develop from egg to adult; periodical cicada. The larva burrows underground and feeds on roots, emerging to live a short time as an adult. »
Seventeen-year locusts…climb trees in the summer and produce a lonesome continuous singing (A. M. Winchester).
Useful english dictionary. 2012.