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gregaria

noun
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gre·​gar·​ia | \ grə̇ˈga(a)rēə \
plural -s

Definition of gregaria

: an irregularly recurrent phase in the life cycle of migratory or plague grasshoppers induced by crowded breeding conditions and marked by structural and color changes and the development of strongly gregarious behavior — compare solitaria

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History and Etymology for gregaria

New Latin, from Latin, feminine of gregarius

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“Gregaria.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gregaria. Accessed 14 Apr. 2021.

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