| 单词 | seventeen-year locust |
| 释义 | seventeen-year locust /sev"euhn teen"year'/ 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 periodical cicada. [1810-20] |
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