n. [L. hibernus, winter; aestivus, of summer]
A period of rest or inactivity during unfavorable conditions extending through both hot and cool seasons, especially in the monsoon tropics, i.e., certain annelids.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • estivation — n. [L. aestas, summer] A form of dormancy during the summer months in high temperatures, or dry seasons; see hibernestivation …   Dictionary of invertebrate zoology

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