1. of, relating to, or resembling an effluvium (a foul-smelling or noxious vapor or emanation)
Usage: formal or technical; often used in scientific or medical contexts

Examples

• The effluvial gases rising from the swamp made the air difficult to breathe.
• Scientists studied the effluvial emissions from the industrial plant.
• The effluvial odor near the landfill was overwhelming.
• Effluvial particles were detected in the laboratory analysis.
• The effluvial nature of the substance required special handling procedures.