Use 'occlusion' to describe something physically preventing passage or visibility.

Physical Blockages

'Occlusion' often implies a natural or accidental blockage, rather than one made on purpose.

Not Human-Caused

In Dentistry, 'occlusion' relates to how well the teeth align when biting.

When 'occlusion' is improper, it suggests a dental issue needing attention.

Occlusion in meteorology usually signals significant weather events like storms.

Remember, 'occlusion' happens when colder air displaces warmer air.

A blood vessel 'occlusion' is serious, often requiring immediate medical response.

Occlusion in the medical field can cause significant discomfort or pain.

In computing, occlusion affects how 3D objects appear, giving depth and realism.

Virtual occlusion can also happen with shadows or light in digital environments.