endothermal

/,endou'θə:məl/ Cách viết khác : (endothermic) /,endou'θə:mik/

Thân thiện

The scientist observes an endothermal reaction in the beaker.

Definition

1. Adjective:
   • (Chemistry) Absorbing heat: Describes a chemical reaction or process that takes in heat from its surroundings.
   • (Biology) Relating to endothermy: Pertaining to organisms (endotherms) that maintain a constant body temperature through internal metabolic processes, often by generating heat.

Usage

• The term is primarily used in scientific contexts, especially chemistry and biology.
• In chemistry, it describes reactions that feel cold because they absorb energy.
• In biology, it describes animals (like mammals and birds) that regulate their body temperature internally.

Examples

• Chemistry Context:
  • The melting of ice is an endothermal process because it requires heat from the environment.
  • Scientists studied the endothermal reaction to understand its energy requirements.
• Biology Context:
  • Mammals are endothermal creatures, capable of maintaining a stable body temperature in cold climates.
  • The endothermal nature of birds allows them to be active during winter.

Advanced Usage

• "Endothermal reaction": A specific chemical reaction characterized by a positive change in enthalpy (ΔH > 0), meaning it absorbs heat.
  • In the lab, we measured the temperature drop during the endothermal reaction.
• "Endothermal organism": An organism that is an endotherm.
  • The research compared the energy expenditure of endothermal organisms with that of ectotherms.

Variants and Related Words

• Endothermic (adj): The more common variant, synonymous with "endothermal" in both chemistry and biology.
  • The decomposition of limestone is an endothermic process.
• Endotherm (n): An organism that generates heat to maintain its body temperature.
  • Humans are classified as endotherms.
• Endothermy (n): The physiological characteristic of being warm-blooded.
  • The evolution of endothermy was a major step for mammals.

Synonyms

• Heat-absorbing: (Chemistry) Taking in thermal energy.
• Warm-blooded: (Biology) Maintaining a constant warm body temperature (common, but less precise than endothermic/endothermal).

Antonyms

• Exothermal/Exothermic (adj): (Chemistry) Releasing heat. (Biology) Ectothermic.
  • Burning wood is an exothermic reaction.
• Ectothermic (adj): (Biology) Relying on external heat sources to regulate body temperature.
  • Reptiles are typically ectothermic animals.

Học thuật

Adjective

1. (of a chemical reaction or compound) occurring or formed with absorption of heat

Từ đồng nghĩa

• endothermic
• heat-absorbing