Definition of aestivation in English:
aestivation
(US estivation)
noun ˌiːstɪˈveɪʃ(ə)nˌɛstɪˈveɪʃ(ə)nˌɛstəˈveɪʃən
mass noun1Zoology
Prolonged torpor or dormancy of an insect, fish, or amphibian during a hot or dry period.
〔动〕夏眠，夏蛰
Example sentencesExamples
- By shutting down their intestinal tracts during estivation, they reduce their daily energy expenditure and therefore increase the duration that they can survive dormancy.
- The period of aestivation is around eight months, though some experts claim that they can remain underground for more than five years.
- A similar pattern is apparent in the vertebrate record, though floodplain aestivation assemblages are known.
- By shutting down their intestinal tracts during estivation, these anurans reduce their daily energy expenditure.
- During winter months and aestivation periods, mussels will burrow into the substrate until only the apertures are protruding.
- Both aestivation and hibernation are found among the members of the family.
2Botany
The arrangement of petals and sepals in a flower bud before it opens.
〔植〕花被卷叠式。比较 VERNATION
Compare with vernation
Example sentencesExamples
- Calibrachoa can, however, be distinguished from Petunia based on the higher chromosome number, chromosome morphology, plant branching habit and type of flower bud estivation.
- Aestivation of the calyx is cochlear descending, which is a new character within Ingeae.
- Prior to the aestivation of the calyx, pairs of stamen primordia are initiated.
- Just as commonly, petal aestivation was observed to be entirely imbricate.
Definition of estivation in US English:
estivation
(also aestivation)
nounˌɛstəˈveɪʃənˌestəˈvāSHən
1Zoology
Prolonged torpor or dormancy of an animal during a hot or dry period.
〔动〕夏眠，夏蛰
Example sentencesExamples
- A similar pattern is apparent in the vertebrate record, though floodplain aestivation assemblages are known.
- By shutting down their intestinal tracts during estivation, these anurans reduce their daily energy expenditure.
- During winter months and aestivation periods, mussels will burrow into the substrate until only the apertures are protruding.
- The period of aestivation is around eight months, though some experts claim that they can remain underground for more than five years.
- Both aestivation and hibernation are found among the members of the family.
- By shutting down their intestinal tracts during estivation, they reduce their daily energy expenditure and therefore increase the duration that they can survive dormancy.
2Botany
The arrangement of petals and sepals in a flower bud before it opens.
〔植〕花被卷叠式。比较 VERNATION
Compare with vernation
Example sentencesExamples
- Calibrachoa can, however, be distinguished from Petunia based on the higher chromosome number, chromosome morphology, plant branching habit and type of flower bud estivation.
- Prior to the aestivation of the calyx, pairs of stamen primordia are initiated.
- Aestivation of the calyx is cochlear descending, which is a new character within Ingeae.
- Just as commonly, petal aestivation was observed to be entirely imbricate.