Aestivare, to spend the aestas, or summer; the word is sometimes spelled "estivation"), literally "summer residence," a term used in zoology for the condition of torpor into which certain animals pass during the hottest season in hot and dry countries, contrasted with the similar winter condition known as hibernation.   anvd [Please select]

The animals are active all the year in this region, there being neither hibernation nor estivation, both perhaps being rendered unnecessary by the storage habit, to be discussed in full later (pp.)   anvd [Please select]