Definition

1. Noun:
   • The bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation: "External respiration" refers specifically to the physical and chemical exchange of gases (oxygen and carbon dioxide) between the lungs and the external environment.

Usage

• This term is a precise, scientific term for the act of breathing. It is used in medical, biological, and physiological contexts to distinguish the process of gas exchange with the external air from internal (cellular) respiration.
• It functions as a singular, uncountable noun.

Examples

• Noun:
  • The doctor monitored the patient's external respiration closely after the surgery.
  • External respiration is a vital function for all aerobic organisms.
  • The study focused on the efficiency of external respiration in high-altitude environments.

Advanced Usage

• In technical contrast: Often used in contrast to "internal respiration" or "cellular respiration," which is the use of oxygen within cells to produce energy.
  • While external respiration involves the lungs, internal respiration occurs at the cellular level.

Variants and Related Words

• Respiration (n): A broader term that can encompass both external respiration and internal (cellular) respiration.
• Breathing (n): The common, everyday term for the process of inhaling and exhaling.
• Ventilation (n): In physiology, often used synonymously with the mechanical process of moving air in and out of the lungs.

Synonyms

• Breathing: The general act of inhaling and exhaling.
• Pulmonary ventilation: The movement of air into and out of the lungs.

Related Phrases

• Process of gas exchange: A descriptive phrase for the core function of external respiration.
• Respiratory cycle: Refers to one complete sequence of inhalation and exhalation.

Noun

1. the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation