estivation

• 名词，指动物在炎热或干旱季节进入的休眠或活动减缓状态；也指花蕾中花各部分（如花瓣、萼片）在开放前的排列方式。

A noun referring to a state of dormancy or slowed activity during hot or dry periods in animals, or the arrangement of floral parts in a bud before opening.

1. Summer dormancy in animalsC1formalscientific

   A state of inactivity and reduced metabolic rate adopted by some animals during hot, dry summer periods to conserve energy and survive harsh conditions.

   动物的夏眠

   • Some desert snails undergo estivation to survive the intense summer heat.
   • The lungfish burrows into the mud and enters estivation until the rains return.
   • Estivation allows certain amphibians to endure prolonged drought.

   同义词aestivation

2. Arrangement of flower parts in a budC1formalscientific

   The specific pattern in which the sepals and petals are folded or arranged within a flower bud before it opens.

   花蕾中花部的排列

   • The estivation of the rose bud shows a characteristic overlapping pattern.
   • Botanists study estivation to understand flower development and classification.
   • The type of estivation can help identify different plant species.