Excretion: meaning, definitions and examples

Used mostly in a scientific or medical context when referring to the process of removing waste from the body.

• Excretion of toxins is essential for maintaining health
• The kidneys play a key role in the excretion of metabolic waste

Primarily used to describe the removal of something unwanted or unnecessary. Often used in general and abstract contexts.

• The team’s strategy focused on the elimination of all errors
• Elimination of waste is vital in efficient project management

Can refer to the release of substances, often in a medical or technical context. It can also describe a document or person being released from obligation or containment.

• The discharge from the wound must be cleaned properly
• The patient was given an early discharge from the hospital

Typically refers to forcefully removing someone or something from a place or organization. It usually has a negative connotation.

• The student faced expulsion after breaking the school rules
• The expulsion of air from the lungs is part of the breathing process

Use when discussing biological and natural processes of removing waste from an organism’s body.

• The kidneys play a crucial role in the excretion of toxins from the body
• Waste excretion is an essential function of the digestive system

Suitable for contexts involving the release of substances, fluids, or energy, often used in medical, legal, or operational settings.

• The patient was concerned about the unusual discharge from his wound
• The official discharge of pollutants into the river is strictly regulated

Fits scenarios involving a forceful or sudden expulsion, often used in mechanical, aerospace, or sports contexts.

• The pilot had to use the ejection seat to escape the failing aircraft
• The referee announced the ejection of the player following the fight

Appropriate for situations involving the removal of people or objects from a dangerous or hazardous area for safety purposes.

• The emergency crew ordered the immediate evacuation of the building due to the fire
• The planned evacuation zone was marked clearly on the map