aestivation

/,i:sti'veiʃn/

Thân thiện

The snail enters a state of aestivation by sealing itself inside its shell to survive the hot, dry summer.

Definition

1. Noun:
   • (Botany): The arrangement of sepals and petals within a flower bud before it opens.
   • (Zoology): A state of dormancy or significantly reduced metabolic activity during a hot or dry period in the summer; a form of summer hibernation.

Usage Examples

• Noun (Botany):
  • The botanist studied the aestivation of the rosebud to classify the plant family.
  • Valvate aestivation describes a specific pattern where the petals just touch at the margins without overlapping.
• Noun (Zoology):
  • Some land snails enter aestivation to survive prolonged drought, sealing their shells with a mucous layer.
  • During aestivation, the lungfish burrows into the mud and reduces its metabolic rate to conserve energy.

Advanced Usage

• "To be in aestivation": To be in the state of summer dormancy.
  • The desert tortoise is in aestivation for several months until the rains return.
• "Induce aestivation": To cause an organism to enter this dormant state.
  • Extreme heat and lack of water can induce aestivation in certain amphibians.

Variants and Related Words

• Aestivate (verb): To spend a hot or dry period in a state of dormancy.
  • These snails aestivate when their pond dries up.
• Estivation: An alternative spelling, primarily used in American English.
• Dormancy (noun): A general term for a period of suspended biological activity.

Synonyms

• Summer dormancy: The general state of inactivity during summer.
• Quiescence: A state of inactivity or dormancy.

Antonyms

• Hibernation: A state of winter dormancy.
• Activity: The state of being active or functioning.

Related Terms and Contexts

• Hibernation: While aestivation is a response to heat/dryness, hibernation is a response to cold.
• Torpor: A broader term for a state of decreased physiological activity.
• Bud (Botany): The structure containing the undeveloped flower where aestivation patterns are observed.

Học thuật

Noun

1. (botany) the arrangement of sepals and petals in a flower bud before it opens
2. (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period

Từ đồng nghĩa

• estivation