periodical cicada (English, noun)
expansion: periodical cicada (plural periodical cicadas)
Senses:
glosses: Any of certain species of cicadas, especially in genus Magicicada, which are known for their 17- and 13-year life-cycles, during most of which they develop underground, emerging in large numbers for a short time as large and audible adults, all those emerging in a year constituting a brood.
Forms:
form: periodical cicadas
tags: plural